+} LDKListen;
+
+/**
+ * The `Confirm` trait is used to notify when transactions have been confirmed on chain or
+ * unconfirmed during a chain reorganization.
+ *
+ * Clients sourcing chain data using a transaction-oriented API should prefer this interface over
+ * [`Listen`]. For instance, an Electrum client may implement [`Filter`] by subscribing to activity
+ * related to registered transactions and outputs. Upon notification, it would pass along the
+ * matching transactions using this interface.
+ *
+ * # Use
+ *
+ * The intended use is as follows:
+ * - Call [`transactions_confirmed`] to process any on-chain activity of interest.
+ * - Call [`transaction_unconfirmed`] to process any transaction returned by [`get_relevant_txids`]
+ * that has been reorganized out of the chain.
+ * - Call [`best_block_updated`] whenever a new chain tip becomes available.
+ *
+ * # Order
+ *
+ * Clients must call these methods in chain order. Specifically:
+ * - Transactions confirmed in a block must be given before transactions confirmed in a later
+ * block.
+ * - Dependent transactions within the same block must be given in topological order, possibly in
+ * separate calls.
+ * - Unconfirmed transactions must be given after the original confirmations and before any
+ * reconfirmation.
+ *
+ * See individual method documentation for further details.
+ *
+ * [`transactions_confirmed`]: Self::transactions_confirmed
+ * [`transaction_unconfirmed`]: Self::transaction_unconfirmed
+ * [`best_block_updated`]: Self::best_block_updated
+ * [`get_relevant_txids`]: Self::get_relevant_txids
+ */
+typedef struct LDKConfirm {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Processes transactions confirmed in a block with a given header and height.
+ *
+ * Should be called for any transactions registered by [`Filter::register_tx`] or any
+ * transactions spending an output registered by [`Filter::register_output`]. Such transactions
+ * appearing in the same block do not need to be included in the same call; instead, multiple
+ * calls with additional transactions may be made so long as they are made in [chain order].
+ *
+ * May be called before or after [`best_block_updated`] for the corresponding block. However,
+ * in the event of a chain reorganization, it must not be called with a `header` that is no
+ * longer in the chain as of the last call to [`best_block_updated`].
+ *
+ * [chain order]: Confirm#Order
+ * [`best_block_updated`]: Self::best_block_updated
+ */
+ void (*transactions_confirmed)(const void *this_arg, const uint8_t (*header)[80], struct LDKCVec_C2Tuple_usizeTransactionZZ txdata, uint32_t height);
+ /**
+ * Processes a transaction that is no longer confirmed as result of a chain reorganization.
+ *
+ * Should be called for any transaction returned by [`get_relevant_txids`] if it has been
+ * reorganized out of the best chain. Once called, the given transaction should not be returned
+ * by [`get_relevant_txids`] unless it has been reconfirmed via [`transactions_confirmed`].
+ *
+ * [`get_relevant_txids`]: Self::get_relevant_txids
+ * [`transactions_confirmed`]: Self::transactions_confirmed
+ */
+ void (*transaction_unconfirmed)(const void *this_arg, const uint8_t (*txid)[32]);
+ /**
+ * Processes an update to the best header connected at the given height.
+ *
+ * Should be called when a new header is available but may be skipped for intermediary blocks
+ * if they become available at the same time.
+ */
+ void (*best_block_updated)(const void *this_arg, const uint8_t (*header)[80], uint32_t height);
+ /**
+ * Returns transactions that should be monitored for reorganization out of the chain.
+ *
+ * Should include any transactions passed to [`transactions_confirmed`] that have insufficient
+ * confirmations to be safe from a chain reorganization. Should not include any transactions
+ * passed to [`transaction_unconfirmed`] unless later reconfirmed.
+ *
+ * May be called to determine the subset of transactions that must still be monitored for
+ * reorganization. Will be idempotent between calls but may change as a result of calls to the
+ * other interface methods. Thus, this is useful to determine which transactions may need to be
+ * given to [`transaction_unconfirmed`].
+ *
+ * [`transactions_confirmed`]: Self::transactions_confirmed
+ * [`transaction_unconfirmed`]: Self::transaction_unconfirmed
+ */
+ struct LDKCVec_TxidZ (*get_relevant_txids)(const void *this_arg);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKConfirm;
+
+
+
+/**
+ * An opaque identifier describing a specific [`Persist`] method call.
+ */
+typedef struct MUST_USE_STRUCT LDKMonitorUpdateId {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeMonitorUpdateId *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKMonitorUpdateId;
+
+/**
+ * `Persist` defines behavior for persisting channel monitors: this could mean
+ * writing once to disk, and/or uploading to one or more backup services.
+ *
+ * Each method can return three possible values:
+ * * If persistence (including any relevant `fsync()` calls) happens immediately, the
+ * implementation should return `Ok(())`, indicating normal channel operation should continue.
+ * * If persistence happens asynchronously, implementations should first ensure the
+ * [`ChannelMonitor`] or [`ChannelMonitorUpdate`] are written durably to disk, and then return
+ * `Err(ChannelMonitorUpdateErr::TemporaryFailure)` while the update continues in the
+ * background. Once the update completes, [`ChainMonitor::channel_monitor_updated`] should be
+ * called with the corresponding [`MonitorUpdateId`].
+ *
+ * Note that unlike the direct [`chain::Watch`] interface,
+ * [`ChainMonitor::channel_monitor_updated`] must be called once for *each* update which occurs.
+ *
+ * * If persistence fails for some reason, implementations should return
+ * `Err(ChannelMonitorUpdateErr::PermanentFailure)`, in which case the channel will likely be
+ * closed without broadcasting the latest state. See
+ * [`ChannelMonitorUpdateErr::PermanentFailure`] for more details.
+ */
+typedef struct LDKPersist {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Persist a new channel's data in response to a [`chain::Watch::watch_channel`] call. This is
+ * called by [`ChannelManager`] for new channels, or may be called directly, e.g. on startup.
+ *
+ * The data can be stored any way you want, but the identifier provided by LDK is the
+ * channel's outpoint (and it is up to you to maintain a correct mapping between the outpoint
+ * and the stored channel data). Note that you **must** persist every new monitor to disk.
+ *
+ * The `update_id` is used to identify this call to [`ChainMonitor::channel_monitor_updated`],
+ * if you return [`ChannelMonitorUpdateErr::TemporaryFailure`].
+ *
+ * See [`Writeable::write`] on [`ChannelMonitor`] for writing out a `ChannelMonitor`
+ * and [`ChannelMonitorUpdateErr`] for requirements when returning errors.
+ *
+ * [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+ * [`Writeable::write`]: crate::util::ser::Writeable::write
+ */
+ struct LDKCResult_NoneChannelMonitorUpdateErrZ (*persist_new_channel)(const void *this_arg, struct LDKOutPoint channel_id, const struct LDKChannelMonitor *NONNULL_PTR data, struct LDKMonitorUpdateId update_id);
+ /**
+ * Update one channel's data. The provided [`ChannelMonitor`] has already applied the given
+ * update.
+ *
+ * Note that on every update, you **must** persist either the [`ChannelMonitorUpdate`] or the
+ * updated monitor itself to disk/backups. See the [`Persist`] trait documentation for more
+ * details.
+ *
+ * During blockchain synchronization operations, this may be called with no
+ * [`ChannelMonitorUpdate`], in which case the full [`ChannelMonitor`] needs to be persisted.
+ * Note that after the full [`ChannelMonitor`] is persisted any previous
+ * [`ChannelMonitorUpdate`]s which were persisted should be discarded - they can no longer be
+ * applied to the persisted [`ChannelMonitor`] as they were already applied.
+ *
+ * If an implementer chooses to persist the updates only, they need to make
+ * sure that all the updates are applied to the `ChannelMonitors` *before*
+ * the set of channel monitors is given to the `ChannelManager`
+ * deserialization routine. See [`ChannelMonitor::update_monitor`] for
+ * applying a monitor update to a monitor. If full `ChannelMonitors` are
+ * persisted, then there is no need to persist individual updates.
+ *
+ * Note that there could be a performance tradeoff between persisting complete
+ * channel monitors on every update vs. persisting only updates and applying
+ * them in batches. The size of each monitor grows `O(number of state updates)`
+ * whereas updates are small and `O(1)`.
+ *
+ * The `update_id` is used to identify this call to [`ChainMonitor::channel_monitor_updated`],
+ * if you return [`ChannelMonitorUpdateErr::TemporaryFailure`].
+ *
+ * See [`Writeable::write`] on [`ChannelMonitor`] for writing out a `ChannelMonitor`,
+ * [`Writeable::write`] on [`ChannelMonitorUpdate`] for writing out an update, and
+ * [`ChannelMonitorUpdateErr`] for requirements when returning errors.
+ *
+ * [`Writeable::write`]: crate::util::ser::Writeable::write
+ *
+ * Note that update (or a relevant inner pointer) may be NULL or all-0s to represent None
+ */
+ struct LDKCResult_NoneChannelMonitorUpdateErrZ (*update_persisted_channel)(const void *this_arg, struct LDKOutPoint channel_id, const struct LDKChannelMonitorUpdate *NONNULL_PTR update, const struct LDKChannelMonitor *NONNULL_PTR data, struct LDKMonitorUpdateId update_id);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKPersist;
+
+
+
+/**
+ * An implementation of [`chain::Watch`] for monitoring channels.
+ *
+ * Connected and disconnected blocks must be provided to `ChainMonitor` as documented by
+ * [`chain::Watch`]. May be used in conjunction with [`ChannelManager`] to monitor channels locally
+ * or used independently to monitor channels remotely. See the [module-level documentation] for
+ * details.
+ *
+ * [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+ * [module-level documentation]: crate::chain::chainmonitor
+ */
+typedef struct MUST_USE_STRUCT LDKChainMonitor {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeChainMonitor *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKChainMonitor;
+
+
+
+/**
+ * Simple KeysInterface implementor that takes a 32-byte seed for use as a BIP 32 extended key
+ * and derives keys from that.
+ *
+ * Your node_id is seed/0'
+ * ChannelMonitor closes may use seed/1'
+ * Cooperative closes may use seed/2'
+ * The two close keys may be needed to claim on-chain funds!
+ *
+ * This struct cannot be used for nodes that wish to support receiving phantom payments;
+ * [`PhantomKeysManager`] must be used instead.
+ *
+ * Note that switching between this struct and [`PhantomKeysManager`] will invalidate any
+ * previously issued invoices and attempts to pay previous invoices will fail.
+ */
+typedef struct MUST_USE_STRUCT LDKKeysManager {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeKeysManager *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKKeysManager;
+
+
+
+/**
+ * Similar to [`KeysManager`], but allows the node using this struct to receive phantom node
+ * payments.
+ *
+ * A phantom node payment is a payment made to a phantom invoice, which is an invoice that can be
+ * paid to one of multiple nodes. This works because we encode the invoice route hints such that
+ * LDK will recognize an incoming payment as destined for a phantom node, and collect the payment
+ * itself without ever needing to forward to this fake node.
+ *
+ * Phantom node payments are useful for load balancing between multiple LDK nodes. They also
+ * provide some fault tolerance, because payers will automatically retry paying other provided
+ * nodes in the case that one node goes down.
+ *
+ * Note that multi-path payments are not supported in phantom invoices for security reasons.
+ * Switching between this struct and [`KeysManager`] will invalidate any previously issued
+ * invoices and attempts to pay previous invoices will fail.
+ */
+typedef struct MUST_USE_STRUCT LDKPhantomKeysManager {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativePhantomKeysManager *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKPhantomKeysManager;
+
+
+
+/**
+ * Chain-related parameters used to construct a new `ChannelManager`.
+ *
+ * Typically, the block-specific parameters are derived from the best block hash for the network,
+ * as a newly constructed `ChannelManager` will not have created any channels yet. These parameters
+ * are not needed when deserializing a previously constructed `ChannelManager`.
+ */
+typedef struct MUST_USE_STRUCT LDKChainParameters {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeChainParameters *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKChainParameters;
+
+/**
+ * A 3-byte byte array.
+ */
+typedef struct LDKThreeBytes {
+ /**
+ * The three bytes
+ */
+ uint8_t data[3];
+} LDKThreeBytes;
+
+/**
+ * A trait to describe an object which can receive channel messages.
+ *
+ * Messages MAY be called in parallel when they originate from different their_node_ids, however
+ * they MUST NOT be called in parallel when the two calls have the same their_node_id.
+ */
+typedef struct LDKChannelMessageHandler {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Handle an incoming open_channel message from the given peer.
+ */
+ void (*handle_open_channel)(const void *this_arg, struct LDKPublicKey their_node_id, struct LDKInitFeatures their_features, const struct LDKOpenChannel *NONNULL_PTR msg);
+ /**
+ * Handle an incoming accept_channel message from the given peer.
+ */
+ void (*handle_accept_channel)(const void *this_arg, struct LDKPublicKey their_node_id, struct LDKInitFeatures their_features, const struct LDKAcceptChannel *NONNULL_PTR msg);
+ /**
+ * Handle an incoming funding_created message from the given peer.
+ */
+ void (*handle_funding_created)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKFundingCreated *NONNULL_PTR msg);
+ /**
+ * Handle an incoming funding_signed message from the given peer.
+ */
+ void (*handle_funding_signed)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKFundingSigned *NONNULL_PTR msg);
+ /**
+ * Handle an incoming funding_locked message from the given peer.
+ */
+ void (*handle_funding_locked)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKFundingLocked *NONNULL_PTR msg);
+ /**
+ * Handle an incoming shutdown message from the given peer.
+ */
+ void (*handle_shutdown)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKInitFeatures *NONNULL_PTR their_features, const struct LDKShutdown *NONNULL_PTR msg);
+ /**
+ * Handle an incoming closing_signed message from the given peer.
+ */
+ void (*handle_closing_signed)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKClosingSigned *NONNULL_PTR msg);
+ /**
+ * Handle an incoming update_add_htlc message from the given peer.
+ */
+ void (*handle_update_add_htlc)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKUpdateAddHTLC *NONNULL_PTR msg);
+ /**
+ * Handle an incoming update_fulfill_htlc message from the given peer.
+ */
+ void (*handle_update_fulfill_htlc)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKUpdateFulfillHTLC *NONNULL_PTR msg);
+ /**
+ * Handle an incoming update_fail_htlc message from the given peer.
+ */
+ void (*handle_update_fail_htlc)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKUpdateFailHTLC *NONNULL_PTR msg);
+ /**
+ * Handle an incoming update_fail_malformed_htlc message from the given peer.
+ */
+ void (*handle_update_fail_malformed_htlc)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKUpdateFailMalformedHTLC *NONNULL_PTR msg);
+ /**
+ * Handle an incoming commitment_signed message from the given peer.
+ */
+ void (*handle_commitment_signed)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKCommitmentSigned *NONNULL_PTR msg);
+ /**
+ * Handle an incoming revoke_and_ack message from the given peer.
+ */
+ void (*handle_revoke_and_ack)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKRevokeAndACK *NONNULL_PTR msg);
+ /**
+ * Handle an incoming update_fee message from the given peer.
+ */
+ void (*handle_update_fee)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKUpdateFee *NONNULL_PTR msg);
+ /**
+ * Handle an incoming announcement_signatures message from the given peer.
+ */
+ void (*handle_announcement_signatures)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKAnnouncementSignatures *NONNULL_PTR msg);
+ /**
+ * Indicates a connection to the peer failed/an existing connection was lost. If no connection
+ * is believed to be possible in the future (eg they're sending us messages we don't
+ * understand or indicate they require unknown feature bits), no_connection_possible is set
+ * and any outstanding channels should be failed.
+ */
+ void (*peer_disconnected)(const void *this_arg, struct LDKPublicKey their_node_id, bool no_connection_possible);
+ /**
+ * Handle a peer reconnecting, possibly generating channel_reestablish message(s).
+ */
+ void (*peer_connected)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKInit *NONNULL_PTR msg);
+ /**
+ * Handle an incoming channel_reestablish message from the given peer.
+ */
+ void (*handle_channel_reestablish)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKChannelReestablish *NONNULL_PTR msg);
+ /**
+ * Handle an incoming channel update from the given peer.
+ */
+ void (*handle_channel_update)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKChannelUpdate *NONNULL_PTR msg);
+ /**
+ * Handle an incoming error message from the given peer.
+ */
+ void (*handle_error)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKErrorMessage *NONNULL_PTR msg);
+ /**
+ * Implementation of MessageSendEventsProvider for this object.
+ */
+ struct LDKMessageSendEventsProvider MessageSendEventsProvider;
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKChannelMessageHandler;
+
+
+
+/**
+ * Arguments for the creation of a ChannelManager that are not deserialized.
+ *
+ * At a high-level, the process for deserializing a ChannelManager and resuming normal operation
+ * is:
+ * 1) Deserialize all stored [`ChannelMonitor`]s.
+ * 2) Deserialize the [`ChannelManager`] by filling in this struct and calling:
+ * `<(BlockHash, ChannelManager)>::read(reader, args)`
+ * This may result in closing some channels if the [`ChannelMonitor`] is newer than the stored
+ * [`ChannelManager`] state to ensure no loss of funds. Thus, transactions may be broadcasted.
+ * 3) If you are not fetching full blocks, register all relevant [`ChannelMonitor`] outpoints the
+ * same way you would handle a [`chain::Filter`] call using
+ * [`ChannelMonitor::get_outputs_to_watch`] and [`ChannelMonitor::get_funding_txo`].
+ * 4) Reconnect blocks on your [`ChannelMonitor`]s.
+ * 5) Disconnect/connect blocks on the [`ChannelManager`].
+ * 6) Re-persist the [`ChannelMonitor`]s to ensure the latest state is on disk.
+ * Note that if you're using a [`ChainMonitor`] for your [`chain::Watch`] implementation, you
+ * will likely accomplish this as a side-effect of calling [`chain::Watch::watch_channel`] in
+ * the next step.
+ * 7) Move the [`ChannelMonitor`]s into your local [`chain::Watch`]. If you're using a
+ * [`ChainMonitor`], this is done by calling [`chain::Watch::watch_channel`].
+ *
+ * Note that the ordering of #4-7 is not of importance, however all four must occur before you
+ * call any other methods on the newly-deserialized [`ChannelManager`].
+ *
+ * Note that because some channels may be closed during deserialization, it is critical that you
+ * always deserialize only the latest version of a ChannelManager and ChannelMonitors available to
+ * you. If you deserialize an old ChannelManager (during which force-closure transactions may be
+ * broadcast), and then later deserialize a newer version of the same ChannelManager (which will
+ * not force-close the same channels but consider them live), you may end up revoking a state for
+ * which you've already broadcasted the transaction.
+ *
+ * [`ChainMonitor`]: crate::chain::chainmonitor::ChainMonitor
+ */
+typedef struct MUST_USE_STRUCT LDKChannelManagerReadArgs {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeChannelManagerReadArgs *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKChannelManagerReadArgs;
+
+
+
+/**
+ * Proof that the sender knows the per-commitment secret of the previous commitment transaction.
+ * This is used to convince the recipient that the channel is at a certain commitment
+ * number even if they lost that data due to a local failure. Of course, the peer may lie
+ * and even later commitments may have been revoked.
+ */
+typedef struct MUST_USE_STRUCT LDKDataLossProtect {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeDataLossProtect *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKDataLossProtect;
+
+/**
+ * A trait to describe an object which can receive routing messages.
+ *
+ * # Implementor DoS Warnings
+ *
+ * For `gossip_queries` messages there are potential DoS vectors when handling
+ * inbound queries. Implementors using an on-disk network graph should be aware of
+ * repeated disk I/O for queries accessing different parts of the network graph.
+ */
+typedef struct LDKRoutingMessageHandler {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Handle an incoming node_announcement message, returning true if it should be forwarded on,
+ * false or returning an Err otherwise.
+ */
+ struct LDKCResult_boolLightningErrorZ (*handle_node_announcement)(const void *this_arg, const struct LDKNodeAnnouncement *NONNULL_PTR msg);
+ /**
+ * Handle a channel_announcement message, returning true if it should be forwarded on, false
+ * or returning an Err otherwise.
+ */
+ struct LDKCResult_boolLightningErrorZ (*handle_channel_announcement)(const void *this_arg, const struct LDKChannelAnnouncement *NONNULL_PTR msg);
+ /**
+ * Handle an incoming channel_update message, returning true if it should be forwarded on,
+ * false or returning an Err otherwise.
+ */
+ struct LDKCResult_boolLightningErrorZ (*handle_channel_update)(const void *this_arg, const struct LDKChannelUpdate *NONNULL_PTR msg);
+ /**
+ * Gets a subset of the channel announcements and updates required to dump our routing table
+ * to a remote node, starting at the short_channel_id indicated by starting_point and
+ * including the batch_amount entries immediately higher in numerical value than starting_point.
+ */
+ struct LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ (*get_next_channel_announcements)(const void *this_arg, uint64_t starting_point, uint8_t batch_amount);
+ /**
+ * Gets a subset of the node announcements required to dump our routing table to a remote node,
+ * starting at the node *after* the provided publickey and including batch_amount entries
+ * immediately higher (as defined by <PublicKey as Ord>::cmp) than starting_point.
+ * If None is provided for starting_point, we start at the first node.
+ *
+ * Note that starting_point (or a relevant inner pointer) may be NULL or all-0s to represent None
+ */
+ struct LDKCVec_NodeAnnouncementZ (*get_next_node_announcements)(const void *this_arg, struct LDKPublicKey starting_point, uint8_t batch_amount);
+ /**
+ * Called when a connection is established with a peer. This can be used to
+ * perform routing table synchronization using a strategy defined by the
+ * implementor.
+ */
+ void (*peer_connected)(const void *this_arg, struct LDKPublicKey their_node_id, const struct LDKInit *NONNULL_PTR init);
+ /**
+ * Handles the reply of a query we initiated to learn about channels
+ * for a given range of blocks. We can expect to receive one or more
+ * replies to a single query.
+ */
+ struct LDKCResult_NoneLightningErrorZ (*handle_reply_channel_range)(const void *this_arg, struct LDKPublicKey their_node_id, struct LDKReplyChannelRange msg);
+ /**
+ * Handles the reply of a query we initiated asking for routing gossip
+ * messages for a list of channels. We should receive this message when
+ * a node has completed its best effort to send us the pertaining routing
+ * gossip messages.
+ */
+ struct LDKCResult_NoneLightningErrorZ (*handle_reply_short_channel_ids_end)(const void *this_arg, struct LDKPublicKey their_node_id, struct LDKReplyShortChannelIdsEnd msg);
+ /**
+ * Handles when a peer asks us to send a list of short_channel_ids
+ * for the requested range of blocks.
+ */
+ struct LDKCResult_NoneLightningErrorZ (*handle_query_channel_range)(const void *this_arg, struct LDKPublicKey their_node_id, struct LDKQueryChannelRange msg);
+ /**
+ * Handles when a peer asks us to send routing gossip messages for a
+ * list of short_channel_ids.
+ */
+ struct LDKCResult_NoneLightningErrorZ (*handle_query_short_channel_ids)(const void *this_arg, struct LDKPublicKey their_node_id, struct LDKQueryShortChannelIds msg);
+ /**
+ * Implementation of MessageSendEventsProvider for this object.
+ */
+ struct LDKMessageSendEventsProvider MessageSendEventsProvider;
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKRoutingMessageHandler;
+
+/**
+ * Trait to be implemented by custom message (unrelated to the channel/gossip LN layers)
+ * decoders.
+ */
+typedef struct LDKCustomMessageReader {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Decodes a custom message to `CustomMessageType`. If the given message type is known to the
+ * implementation and the message could be decoded, must return `Ok(Some(message))`. If the
+ * message type is unknown to the implementation, must return `Ok(None)`. If a decoding error
+ * occur, must return `Err(DecodeError::X)` where `X` details the encountered error.
+ */
+ struct LDKCResult_COption_TypeZDecodeErrorZ (*read)(const void *this_arg, uint16_t message_type, struct LDKu8slice buffer);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKCustomMessageReader;
+
+/**
+ * Handler for BOLT1-compliant messages.
+ */
+typedef struct LDKCustomMessageHandler {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Called with the message type that was received and the buffer to be read.
+ * Can return a `MessageHandlingError` if the message could not be handled.
+ */
+ struct LDKCResult_NoneLightningErrorZ (*handle_custom_message)(const void *this_arg, struct LDKType msg, struct LDKPublicKey sender_node_id);
+ /**
+ * Gets the list of pending messages which were generated by the custom message
+ * handler, clearing the list in the process. The first tuple element must
+ * correspond to the intended recipients node ids. If no connection to one of the
+ * specified node does not exist, the message is simply not sent to it.
+ */
+ struct LDKCVec_C2Tuple_PublicKeyTypeZZ (*get_and_clear_pending_msg)(const void *this_arg);
+ /**
+ * Implementation of CustomMessageReader for this object.
+ */
+ struct LDKCustomMessageReader CustomMessageReader;
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKCustomMessageHandler;
+
+
+
+/**
+ * A dummy struct which implements `RoutingMessageHandler` without storing any routing information
+ * or doing any processing. You can provide one of these as the route_handler in a MessageHandler.
+ */
+typedef struct MUST_USE_STRUCT LDKIgnoringMessageHandler {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeIgnoringMessageHandler *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKIgnoringMessageHandler;
+
+
+
+/**
+ * A dummy struct which implements `ChannelMessageHandler` without having any channels.
+ * You can provide one of these as the route_handler in a MessageHandler.
+ */
+typedef struct MUST_USE_STRUCT LDKErroringMessageHandler {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeErroringMessageHandler *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKErroringMessageHandler;
+
+
+
+/**
+ * Provides references to trait impls which handle different types of messages.
+ */
+typedef struct MUST_USE_STRUCT LDKMessageHandler {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeMessageHandler *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKMessageHandler;
+
+/**
+ * Provides an object which can be used to send data to and which uniquely identifies a connection
+ * to a remote host. You will need to be able to generate multiple of these which meet Eq and
+ * implement Hash to meet the PeerManager API.
+ *
+ * For efficiency, Clone should be relatively cheap for this type.
+ *
+ * Two descriptors may compare equal (by [`cmp::Eq`] and [`hash::Hash`]) as long as the original
+ * has been disconnected, the [`PeerManager`] has been informed of the disconnection (either by it
+ * having triggered the disconnection or a call to [`PeerManager::socket_disconnected`]), and no
+ * further calls to the [`PeerManager`] related to the original socket occur. This allows you to
+ * use a file descriptor for your SocketDescriptor directly, however for simplicity you may wish
+ * to simply use another value which is guaranteed to be globally unique instead.
+ */
+typedef struct LDKSocketDescriptor {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Attempts to send some data from the given slice to the peer.
+ *
+ * Returns the amount of data which was sent, possibly 0 if the socket has since disconnected.
+ * Note that in the disconnected case, [`PeerManager::socket_disconnected`] must still be
+ * called and further write attempts may occur until that time.
+ *
+ * If the returned size is smaller than `data.len()`, a
+ * [`PeerManager::write_buffer_space_avail`] call must be made the next time more data can be
+ * written. Additionally, until a `send_data` event completes fully, no further
+ * [`PeerManager::read_event`] calls should be made for the same peer! Because this is to
+ * prevent denial-of-service issues, you should not read or buffer any data from the socket
+ * until then.
+ *
+ * If a [`PeerManager::read_event`] call on this descriptor had previously returned true
+ * (indicating that read events should be paused to prevent DoS in the send buffer),
+ * `resume_read` may be set indicating that read events on this descriptor should resume. A
+ * `resume_read` of false carries no meaning, and should not cause any action.
+ */
+ uintptr_t (*send_data)(void *this_arg, struct LDKu8slice data, bool resume_read);
+ /**
+ * Disconnect the socket pointed to by this SocketDescriptor.
+ *
+ * You do *not* need to call [`PeerManager::socket_disconnected`] with this socket after this
+ * call (doing so is a noop).
+ */
+ void (*disconnect_socket)(void *this_arg);
+ /**
+ * Checks if two objects are equal given this object's this_arg pointer and another object.
+ */
+ bool (*eq)(const void *this_arg, const struct LDKSocketDescriptor *NONNULL_PTR other_arg);
+ /**
+ * Calculate a succinct non-cryptographic hash for an object given its this_arg pointer.
+ * This is used, for example, for inclusion of this object in a hash map.
+ */
+ uint64_t (*hash)(const void *this_arg);
+ /**
+ * Called, if set, after this SocketDescriptor has been cloned into a duplicate object.
+ * The new SocketDescriptor is provided, and should be mutated as needed to perform a
+ * deep copy of the object pointed to by this_arg or avoid any double-freeing.
+ */
+ void (*cloned)(struct LDKSocketDescriptor *NONNULL_PTR new_SocketDescriptor);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKSocketDescriptor;
+
+
+
+/**
+ * A PeerManager manages a set of peers, described by their [`SocketDescriptor`] and marshalls
+ * socket events into messages which it passes on to its [`MessageHandler`].
+ *
+ * Locks are taken internally, so you must never assume that reentrancy from a
+ * [`SocketDescriptor`] call back into [`PeerManager`] methods will not deadlock.
+ *
+ * Calls to [`read_event`] will decode relevant messages and pass them to the
+ * [`ChannelMessageHandler`], likely doing message processing in-line. Thus, the primary form of
+ * parallelism in Rust-Lightning is in calls to [`read_event`]. Note, however, that calls to any
+ * [`PeerManager`] functions related to the same connection must occur only in serial, making new
+ * calls only after previous ones have returned.
+ *
+ * Rather than using a plain PeerManager, it is preferable to use either a SimpleArcPeerManager
+ * a SimpleRefPeerManager, for conciseness. See their documentation for more details, but
+ * essentially you should default to using a SimpleRefPeerManager, and use a
+ * SimpleArcPeerManager when you require a PeerManager with a static lifetime, such as when
+ * you're using lightning-net-tokio.
+ *
+ * [`read_event`]: PeerManager::read_event
+ */
+typedef struct MUST_USE_STRUCT LDKPeerManager {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativePeerManager *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKPeerManager;
+
+
+
+/**
+ * Static channel fields used to build transactions given per-commitment fields, organized by
+ * broadcaster/countersignatory.
+ *
+ * This is derived from the holder/counterparty-organized ChannelTransactionParameters via the
+ * as_holder_broadcastable and as_counterparty_broadcastable functions.
+ */
+typedef struct MUST_USE_STRUCT LDKDirectedChannelTransactionParameters {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeDirectedChannelTransactionParameters *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKDirectedChannelTransactionParameters;
+
+
+
+/**
+ * A read-only view of [`NetworkGraph`].
+ */
+typedef struct MUST_USE_STRUCT LDKReadOnlyNetworkGraph {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeReadOnlyNetworkGraph *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKReadOnlyNetworkGraph;
+
+
+
+/**
+ * Receives and validates network updates from peers,
+ * stores authentic and relevant data as a network graph.
+ * This network graph is then used for routing payments.
+ * Provides interface to help with initial routing sync by
+ * serving historical announcements.
+ *
+ * Serves as an [`EventHandler`] for applying updates from [`Event::PaymentPathFailed`] to the
+ * [`NetworkGraph`].
+ */
+typedef struct MUST_USE_STRUCT LDKNetGraphMsgHandler {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeNetGraphMsgHandler *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKNetGraphMsgHandler;
+
+
+
+/**
+ * A wrapper around [`ChannelInfo`] representing information about the channel as directed from a
+ * source node to a target node.
+ */
+typedef struct MUST_USE_STRUCT LDKDirectedChannelInfo {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeDirectedChannelInfo *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKDirectedChannelInfo;
+
+/**
+ * The effective capacity of a channel for routing purposes.
+ *
+ * While this may be smaller than the actual channel capacity, amounts greater than
+ * [`Self::as_msat`] should not be routed through the channel.
+ */
+typedef enum LDKEffectiveCapacity_Tag {
+ /**
+ * The available liquidity in the channel known from being a channel counterparty, and thus a
+ * direct hop.
+ */
+ LDKEffectiveCapacity_ExactLiquidity,
+ /**
+ * The maximum HTLC amount in one direction as advertised on the gossip network.
+ */
+ LDKEffectiveCapacity_MaximumHTLC,
+ /**
+ * The total capacity of the channel as determined by the funding transaction.
+ */
+ LDKEffectiveCapacity_Total,
+ /**
+ * A capacity sufficient to route any payment, typically used for private channels provided by
+ * an invoice.
+ */
+ LDKEffectiveCapacity_Infinite,
+ /**
+ * A capacity that is unknown possibly because either the chain state is unavailable to know
+ * the total capacity or the `htlc_maximum_msat` was not advertised on the gossip network.
+ */
+ LDKEffectiveCapacity_Unknown,
+ /**
+ * Must be last for serialization purposes
+ */
+ LDKEffectiveCapacity_Sentinel,
+} LDKEffectiveCapacity_Tag;
+
+typedef struct LDKEffectiveCapacity_LDKExactLiquidity_Body {
+ /**
+ * Either the inbound or outbound liquidity depending on the direction, denominated in
+ * millisatoshi.
+ */
+ uint64_t liquidity_msat;
+} LDKEffectiveCapacity_LDKExactLiquidity_Body;
+
+typedef struct LDKEffectiveCapacity_LDKMaximumHTLC_Body {
+ /**
+ * The maximum HTLC amount denominated in millisatoshi.
+ */
+ uint64_t amount_msat;
+} LDKEffectiveCapacity_LDKMaximumHTLC_Body;
+
+typedef struct LDKEffectiveCapacity_LDKTotal_Body {
+ /**
+ * The funding amount denominated in millisatoshi.
+ */
+ uint64_t capacity_msat;
+} LDKEffectiveCapacity_LDKTotal_Body;
+
+typedef struct MUST_USE_STRUCT LDKEffectiveCapacity {
+ LDKEffectiveCapacity_Tag tag;
+ union {
+ LDKEffectiveCapacity_LDKExactLiquidity_Body exact_liquidity;
+ LDKEffectiveCapacity_LDKMaximumHTLC_Body maximum_htlc;
+ LDKEffectiveCapacity_LDKTotal_Body total;
+ };
+} LDKEffectiveCapacity;
+
+/**
+ * An interface used to score payment channels for path finding.
+ *
+ *\tScoring is in terms of fees willing to be paid in order to avoid routing through a channel.
+ */
+typedef struct LDKScore {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Returns the fee in msats willing to be paid to avoid routing `send_amt_msat` through the
+ * given channel in the direction from `source` to `target`.
+ *
+ * The channel's capacity (less any other MPP parts that are also being considered for use in
+ * the same payment) is given by `capacity_msat`. It may be determined from various sources
+ * such as a chain data, network gossip, or invoice hints. For invoice hints, a capacity near
+ * [`u64::max_value`] is given to indicate sufficient capacity for the invoice's full amount.
+ * Thus, implementations should be overflow-safe.
+ */
+ uint64_t (*channel_penalty_msat)(const void *this_arg, uint64_t short_channel_id, uint64_t send_amt_msat, uint64_t capacity_msat, const struct LDKNodeId *NONNULL_PTR source, const struct LDKNodeId *NONNULL_PTR target);
+ /**
+ * Handles updating channel penalties after failing to route through a channel.
+ */
+ void (*payment_path_failed)(void *this_arg, struct LDKCVec_RouteHopZ path, uint64_t short_channel_id);
+ /**
+ * Handles updating channel penalties after successfully routing along a path.
+ */
+ void (*payment_path_successful)(void *this_arg, struct LDKCVec_RouteHopZ path);
+ /**
+ * Serialize the object into a byte array
+ */
+ struct LDKCVec_u8Z (*write)(const void *this_arg);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKScore;
+
+/**
+ * A scorer that is accessed under a lock.
+ *
+ * Needed so that calls to [`Score::channel_penalty_msat`] in [`find_route`] can be made while
+ * having shared ownership of a scorer but without requiring internal locking in [`Score`]
+ * implementations. Internal locking would be detrimental to route finding performance and could
+ * result in [`Score::channel_penalty_msat`] returning a different value for the same channel.
+ *
+ * [`find_route`]: crate::routing::router::find_route
+ */
+typedef struct LDKLockableScore {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Returns the locked scorer.
+ */
+ struct LDKScore (*lock)(const void *this_arg);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKLockableScore;
+
+
+
+/**
+ * A concrete implementation of [`LockableScore`] which supports multi-threading.
+ */
+typedef struct MUST_USE_STRUCT LDKMultiThreadedLockableScore {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeMultiThreadedLockableScore *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKMultiThreadedLockableScore;
+
+
+
+/**
+ * Parameters for configuring [`ProbabilisticScorer`].
+ *
+ * Used to configure base, liquidity, and amount penalties, the sum of which comprises the channel
+ * penalty (i.e., the amount in msats willing to be paid to avoid routing through the channel).
+ */
+typedef struct MUST_USE_STRUCT LDKProbabilisticScoringParameters {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeProbabilisticScoringParameters *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKProbabilisticScoringParameters;
+
+
+
+/**
+ * FilesystemPersister persists channel data on disk, where each channel's
+ * data is stored in a file named after its funding outpoint.
+ *
+ * Warning: this module does the best it can with calls to persist data, but it
+ * can only guarantee that the data is passed to the drive. It is up to the
+ * drive manufacturers to do the actual persistence properly, which they often
+ * don't (especially on consumer-grade hardware). Therefore, it is up to the
+ * user to validate their entire storage stack, to ensure the writes are
+ * persistent.
+ * Corollary: especially when dealing with larger amounts of money, it is best
+ * practice to have multiple channel data backups and not rely only on one
+ * FilesystemPersister.
+ */
+typedef struct MUST_USE_STRUCT LDKFilesystemPersister {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeFilesystemPersister *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKFilesystemPersister;
+
+
+
+/**
+ * `BackgroundProcessor` takes care of tasks that (1) need to happen periodically to keep
+ * Rust-Lightning running properly, and (2) either can or should be run in the background. Its
+ * responsibilities are:
+ * * Processing [`Event`]s with a user-provided [`EventHandler`].
+ * * Monitoring whether the [`ChannelManager`] needs to be re-persisted to disk, and if so,
+ * writing it to disk/backups by invoking the callback given to it at startup.
+ * [`ChannelManager`] persistence should be done in the background.
+ * * Calling [`ChannelManager::timer_tick_occurred`] and [`PeerManager::timer_tick_occurred`]
+ * at the appropriate intervals.
+ * * Calling [`NetworkGraph::remove_stale_channels`] (if a [`NetGraphMsgHandler`] is provided to
+ * [`BackgroundProcessor::start`]).
+ *
+ * It will also call [`PeerManager::process_events`] periodically though this shouldn't be relied
+ * upon as doing so may result in high latency.
+ *
+ * # Note
+ *
+ * If [`ChannelManager`] persistence fails and the persisted manager becomes out-of-date, then
+ * there is a risk of channels force-closing on startup when the manager realizes it's outdated.
+ * However, as long as [`ChannelMonitor`] backups are sound, no funds besides those used for
+ * unilateral chain closure fees are at risk.
+ *
+ * [`ChannelMonitor`]: lightning::chain::channelmonitor::ChannelMonitor
+ * [`Event`]: lightning::util::events::Event
+ *BackgroundProcessor will immediately stop on drop. It should be stored until shutdown.
+ */
+typedef struct MUST_USE_STRUCT LDKBackgroundProcessor {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeBackgroundProcessor *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKBackgroundProcessor;
+
+/**
+ * Trait that handles persisting a [`ChannelManager`] and [`NetworkGraph`] to disk.
+ */
+typedef struct LDKPersister {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Persist the given [`ChannelManager`] to disk, returning an error if persistence failed
+ * (which will cause the [`BackgroundProcessor`] which called this method to exit).
+ */
+ struct LDKCResult_NoneErrorZ (*persist_manager)(const void *this_arg, const struct LDKChannelManager *NONNULL_PTR channel_manager);
+ /**
+ * Persist the given [`NetworkGraph`] to disk, returning an error if persistence failed.
+ */
+ struct LDKCResult_NoneErrorZ (*persist_graph)(const void *this_arg, const struct LDKNetworkGraph *NONNULL_PTR network_graph);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKPersister;
+
+
+
+/**
+ * Data of the `RawInvoice` that is encoded in the data part
+ */
+typedef struct MUST_USE_STRUCT LDKRawDataPart {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeRawDataPart *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKRawDataPart;
+
+
+
+/**
+ * SHA-256 hash
+ */
+typedef struct MUST_USE_STRUCT LDKSha256 {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeSha256 *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKSha256;
+
+
+
+/**
+ * Positive duration that defines when (relatively to the timestamp) in the future the invoice
+ * expires
+ */
+typedef struct MUST_USE_STRUCT LDKExpiryTime {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeExpiryTime *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKExpiryTime;
+
+
+
+/**
+ * `min_final_cltv_expiry` to use for the last HTLC in the route
+ */
+typedef struct MUST_USE_STRUCT LDKMinFinalCltvExpiry {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeMinFinalCltvExpiry *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKMinFinalCltvExpiry;
+
+/**
+ * A 20-byte byte array.
+ */
+typedef struct LDKTwentyBytes {
+ /**
+ * The twenty bytes
+ */
+ uint8_t data[20];
+} LDKTwentyBytes;
+
+/**
+ * Fallback address in case no LN payment is possible
+ */
+typedef enum LDKFallback_Tag {
+ LDKFallback_SegWitProgram,
+ LDKFallback_PubKeyHash,
+ LDKFallback_ScriptHash,
+ /**
+ * Must be last for serialization purposes
+ */
+ LDKFallback_Sentinel,
+} LDKFallback_Tag;
+
+typedef struct LDKFallback_LDKSegWitProgram_Body {
+ struct LDKu5 version;
+ struct LDKCVec_u8Z program;
+} LDKFallback_LDKSegWitProgram_Body;
+
+typedef struct MUST_USE_STRUCT LDKFallback {
+ LDKFallback_Tag tag;
+ union {
+ LDKFallback_LDKSegWitProgram_Body seg_wit_program;
+ struct {
+ struct LDKTwentyBytes pub_key_hash;
+ };
+ struct {
+ struct LDKTwentyBytes script_hash;
+ };
+ };
+} LDKFallback;
+
+/**
+ * A trait defining behavior of an [`Invoice`] payer.
+ */
+typedef struct LDKPayer {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Returns the payer's node id.
+ */
+ struct LDKPublicKey (*node_id)(const void *this_arg);
+ /**
+ * Returns the payer's channels.
+ */
+ struct LDKCVec_ChannelDetailsZ (*first_hops)(const void *this_arg);
+ /**
+ * Sends a payment over the Lightning Network using the given [`Route`].
+ *
+ * Note that payment_secret (or a relevant inner pointer) may be NULL or all-0s to represent None
+ */
+ struct LDKCResult_PaymentIdPaymentSendFailureZ (*send_payment)(const void *this_arg, const struct LDKRoute *NONNULL_PTR route, struct LDKThirtyTwoBytes payment_hash, struct LDKThirtyTwoBytes payment_secret);
+ /**
+ * Sends a spontaneous payment over the Lightning Network using the given [`Route`].
+ */
+ struct LDKCResult_PaymentIdPaymentSendFailureZ (*send_spontaneous_payment)(const void *this_arg, const struct LDKRoute *NONNULL_PTR route, struct LDKThirtyTwoBytes payment_preimage);
+ /**
+ * Retries a failed payment path for the [`PaymentId`] using the given [`Route`].
+ */
+ struct LDKCResult_NonePaymentSendFailureZ (*retry_payment)(const void *this_arg, const struct LDKRoute *NONNULL_PTR route, struct LDKThirtyTwoBytes payment_id);
+ /**
+ * Signals that no further retries for the given payment will occur.
+ */
+ void (*abandon_payment)(const void *this_arg, struct LDKThirtyTwoBytes payment_id);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKPayer;
+
+/**
+ * A trait defining behavior for routing an [`Invoice`] payment.
+ */
+typedef struct LDKRouter {
+ /**
+ * An opaque pointer which is passed to your function implementations as an argument.
+ * This has no meaning in the LDK, and can be NULL or any other value.
+ */
+ void *this_arg;
+ /**
+ * Finds a [`Route`] between `payer` and `payee` for a payment with the given values.
+ *
+ * Note that first_hops (or a relevant inner pointer) may be NULL or all-0s to represent None
+ */
+ struct LDKCResult_RouteLightningErrorZ (*find_route)(const void *this_arg, struct LDKPublicKey payer, const struct LDKRouteParameters *NONNULL_PTR route_params, const uint8_t (*payment_hash)[32], struct LDKCVec_ChannelDetailsZ *first_hops, const struct LDKScore *NONNULL_PTR scorer);
+ /**
+ * Frees any resources associated with this object given its this_arg pointer.
+ * Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ */
+ void (*free)(void *this_arg);
+} LDKRouter;
+
+
+
+/**
+ * A utility for paying [`Invoice`]s and sending spontaneous payments.
+ *
+ * See [module-level documentation] for details.
+ *
+ * [module-level documentation]: crate::payment
+ */
+typedef struct MUST_USE_STRUCT LDKInvoicePayer {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeInvoicePayer *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKInvoicePayer;
+
+
+
+/**
+ * Number of attempts to retry payment path failures for an [`Invoice`].
+ *
+ * Note that this is the number of *path* failures, not full payment retries. For multi-path
+ * payments, if this is less than the total number of paths, we will never even retry all of the
+ * payment's paths.
+ */
+typedef struct MUST_USE_STRUCT LDKRetryAttempts {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeRetryAttempts *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKRetryAttempts;
+
+
+
+/**
+ * A [`Router`] implemented using [`find_route`].
+ */
+typedef struct MUST_USE_STRUCT LDKDefaultRouter {
+ /**
+ * A pointer to the opaque Rust object.
+ * Nearly everywhere, inner must be non-null, however in places where
+ * the Rust equivalent takes an Option, it may be set to null to indicate None.
+ */
+ LDKnativeDefaultRouter *inner;
+ /**
+ * Indicates that this is the only struct which contains the same pointer.
+ * Rust functions which take ownership of an object provided via an argument require
+ * this to be true and invalidate the object pointed to by inner.
+ */
+ bool is_owned;
+} LDKDefaultRouter;
+
+extern const uintptr_t MAX_BUF_SIZE;
+
+extern const uint64_t MIN_RELAY_FEE_SAT_PER_1000_WEIGHT;
+
+extern const uint64_t CLOSED_CHANNEL_UPDATE_ID;
+
+extern const uint32_t ANTI_REORG_DELAY;
+
+extern const uint16_t BREAKDOWN_TIMEOUT;
+
+extern const uint16_t MIN_CLTV_EXPIRY_DELTA;
+
+extern const uint32_t MIN_FINAL_CLTV_EXPIRY;
+
+extern const uintptr_t REVOKEABLE_REDEEMSCRIPT_MAX_LENGTH;
+
+extern const uint64_t UNKNOWN_CHANNEL_CAPACITY_MSAT;
+
+extern const uint32_t DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA;
+
+extern const uint64_t MAX_TIMESTAMP;
+
+extern const uint64_t DEFAULT_EXPIRY_TIME;
+
+extern const uint64_t DEFAULT_MIN_FINAL_CLTV_EXPIRY;
+
+extern const uint8_t TAG_PAYMENT_HASH;
+
+extern const uint8_t TAG_DESCRIPTION;
+
+extern const uint8_t TAG_PAYEE_PUB_KEY;
+
+extern const uint8_t TAG_DESCRIPTION_HASH;
+
+extern const uint8_t TAG_EXPIRY_TIME;
+
+extern const uint8_t TAG_MIN_FINAL_CLTV_EXPIRY;
+
+extern const uint8_t TAG_FALLBACK;
+
+extern const uint8_t TAG_PRIVATE_ROUTE;
+
+extern const uint8_t TAG_PAYMENT_SECRET;
+
+extern const uint8_t TAG_FEATURES;
+
+struct LDKStr _ldk_get_compiled_version(void);
+
+struct LDKStr _ldk_c_bindings_get_compiled_version(void);
+
+/**
+ * Creates a new Bech32Error which has the same data as `orig`
+ */
+struct LDKBech32Error Bech32Error_clone(const struct LDKBech32Error *NONNULL_PTR orig);
+
+/**
+ * Releases any memory held by the given `Bech32Error` (which is currently none)
+ */
+void Bech32Error_free(struct LDKBech32Error o);
+
+/**
+ * Frees the data buffer, if data_is_owned is set and datalen > 0.
+ */
+void Transaction_free(struct LDKTransaction _res);
+
+/**
+ * Convenience function for constructing a new TxOut
+ */
+struct LDKTxOut TxOut_new(struct LDKCVec_u8Z script_pubkey, uint64_t value);
+
+/**
+ * Frees the data pointed to by script_pubkey.
+ */
+void TxOut_free(struct LDKTxOut _res);
+
+/**
+ * Creates a new TxOut which has the same data as `orig` but with a new script buffer.
+ */
+struct LDKTxOut TxOut_clone(const struct LDKTxOut *NONNULL_PTR orig);
+
+/**
+ * Frees the data buffer, if chars_is_owned is set and len > 0.
+ */
+void Str_free(struct LDKStr _res);
+
+#if defined(LDK_DEBUG_BUILD)
+/**
+ * This function exists for memory safety testing purposes. It should never be used in production
+ * code
+ */
+const void *__unmangle_inner_ptr(const void *ptr);
+#endif
+
+/**
+ * Creates a new CResult_NoneNoneZ in the success state.
+ */
+struct LDKCResult_NoneNoneZ CResult_NoneNoneZ_ok(void);
+
+/**
+ * Creates a new CResult_NoneNoneZ in the error state.
+ */
+struct LDKCResult_NoneNoneZ CResult_NoneNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_NoneNoneZ_is_ok(const struct LDKCResult_NoneNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_NoneNoneZ.
+ */
+void CResult_NoneNoneZ_free(struct LDKCResult_NoneNoneZ _res);
+
+/**
+ * Creates a new CResult_NoneNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_NoneNoneZ CResult_NoneNoneZ_clone(const struct LDKCResult_NoneNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_CounterpartyCommitmentSecretsDecodeErrorZ in the success state.
+ */
+struct LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ CResult_CounterpartyCommitmentSecretsDecodeErrorZ_ok(struct LDKCounterpartyCommitmentSecrets o);
+
+/**
+ * Creates a new CResult_CounterpartyCommitmentSecretsDecodeErrorZ in the error state.
+ */
+struct LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ CResult_CounterpartyCommitmentSecretsDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_CounterpartyCommitmentSecretsDecodeErrorZ_is_ok(const struct LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_CounterpartyCommitmentSecretsDecodeErrorZ.
+ */
+void CResult_CounterpartyCommitmentSecretsDecodeErrorZ_free(struct LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_CounterpartyCommitmentSecretsDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ CResult_CounterpartyCommitmentSecretsDecodeErrorZ_clone(const struct LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_SecretKeyErrorZ in the success state.
+ */
+struct LDKCResult_SecretKeyErrorZ CResult_SecretKeyErrorZ_ok(struct LDKSecretKey o);
+
+/**
+ * Creates a new CResult_SecretKeyErrorZ in the error state.
+ */
+struct LDKCResult_SecretKeyErrorZ CResult_SecretKeyErrorZ_err(enum LDKSecp256k1Error e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_SecretKeyErrorZ_is_ok(const struct LDKCResult_SecretKeyErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_SecretKeyErrorZ.
+ */
+void CResult_SecretKeyErrorZ_free(struct LDKCResult_SecretKeyErrorZ _res);
+
+/**
+ * Creates a new CResult_SecretKeyErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_SecretKeyErrorZ CResult_SecretKeyErrorZ_clone(const struct LDKCResult_SecretKeyErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_PublicKeyErrorZ in the success state.
+ */
+struct LDKCResult_PublicKeyErrorZ CResult_PublicKeyErrorZ_ok(struct LDKPublicKey o);
+
+/**
+ * Creates a new CResult_PublicKeyErrorZ in the error state.
+ */
+struct LDKCResult_PublicKeyErrorZ CResult_PublicKeyErrorZ_err(enum LDKSecp256k1Error e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_PublicKeyErrorZ_is_ok(const struct LDKCResult_PublicKeyErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_PublicKeyErrorZ.
+ */
+void CResult_PublicKeyErrorZ_free(struct LDKCResult_PublicKeyErrorZ _res);
+
+/**
+ * Creates a new CResult_PublicKeyErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_PublicKeyErrorZ CResult_PublicKeyErrorZ_clone(const struct LDKCResult_PublicKeyErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_TxCreationKeysDecodeErrorZ in the success state.
+ */
+struct LDKCResult_TxCreationKeysDecodeErrorZ CResult_TxCreationKeysDecodeErrorZ_ok(struct LDKTxCreationKeys o);
+
+/**
+ * Creates a new CResult_TxCreationKeysDecodeErrorZ in the error state.
+ */
+struct LDKCResult_TxCreationKeysDecodeErrorZ CResult_TxCreationKeysDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_TxCreationKeysDecodeErrorZ_is_ok(const struct LDKCResult_TxCreationKeysDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_TxCreationKeysDecodeErrorZ.
+ */
+void CResult_TxCreationKeysDecodeErrorZ_free(struct LDKCResult_TxCreationKeysDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_TxCreationKeysDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_TxCreationKeysDecodeErrorZ CResult_TxCreationKeysDecodeErrorZ_clone(const struct LDKCResult_TxCreationKeysDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_ChannelPublicKeysDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ChannelPublicKeysDecodeErrorZ CResult_ChannelPublicKeysDecodeErrorZ_ok(struct LDKChannelPublicKeys o);
+
+/**
+ * Creates a new CResult_ChannelPublicKeysDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ChannelPublicKeysDecodeErrorZ CResult_ChannelPublicKeysDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ChannelPublicKeysDecodeErrorZ_is_ok(const struct LDKCResult_ChannelPublicKeysDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ChannelPublicKeysDecodeErrorZ.
+ */
+void CResult_ChannelPublicKeysDecodeErrorZ_free(struct LDKCResult_ChannelPublicKeysDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_ChannelPublicKeysDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_ChannelPublicKeysDecodeErrorZ CResult_ChannelPublicKeysDecodeErrorZ_clone(const struct LDKCResult_ChannelPublicKeysDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_TxCreationKeysErrorZ in the success state.
+ */
+struct LDKCResult_TxCreationKeysErrorZ CResult_TxCreationKeysErrorZ_ok(struct LDKTxCreationKeys o);
+
+/**
+ * Creates a new CResult_TxCreationKeysErrorZ in the error state.
+ */
+struct LDKCResult_TxCreationKeysErrorZ CResult_TxCreationKeysErrorZ_err(enum LDKSecp256k1Error e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_TxCreationKeysErrorZ_is_ok(const struct LDKCResult_TxCreationKeysErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_TxCreationKeysErrorZ.
+ */
+void CResult_TxCreationKeysErrorZ_free(struct LDKCResult_TxCreationKeysErrorZ _res);
+
+/**
+ * Creates a new CResult_TxCreationKeysErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_TxCreationKeysErrorZ CResult_TxCreationKeysErrorZ_clone(const struct LDKCResult_TxCreationKeysErrorZ *NONNULL_PTR orig);
+
+/**
+ * Constructs a new COption_u32Z containing a u32
+ */
+struct LDKCOption_u32Z COption_u32Z_some(uint32_t o);
+
+/**
+ * Constructs a new COption_u32Z containing nothing
+ */
+struct LDKCOption_u32Z COption_u32Z_none(void);
+
+/**
+ * Frees any resources associated with the u32, if we are in the Some state
+ */
+void COption_u32Z_free(struct LDKCOption_u32Z _res);
+
+/**
+ * Creates a new COption_u32Z which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCOption_u32Z COption_u32Z_clone(const struct LDKCOption_u32Z *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_HTLCOutputInCommitmentDecodeErrorZ in the success state.
+ */
+struct LDKCResult_HTLCOutputInCommitmentDecodeErrorZ CResult_HTLCOutputInCommitmentDecodeErrorZ_ok(struct LDKHTLCOutputInCommitment o);
+
+/**
+ * Creates a new CResult_HTLCOutputInCommitmentDecodeErrorZ in the error state.
+ */
+struct LDKCResult_HTLCOutputInCommitmentDecodeErrorZ CResult_HTLCOutputInCommitmentDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_HTLCOutputInCommitmentDecodeErrorZ_is_ok(const struct LDKCResult_HTLCOutputInCommitmentDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_HTLCOutputInCommitmentDecodeErrorZ.
+ */
+void CResult_HTLCOutputInCommitmentDecodeErrorZ_free(struct LDKCResult_HTLCOutputInCommitmentDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_HTLCOutputInCommitmentDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_HTLCOutputInCommitmentDecodeErrorZ CResult_HTLCOutputInCommitmentDecodeErrorZ_clone(const struct LDKCResult_HTLCOutputInCommitmentDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Constructs a new COption_NoneZ containing a
+ */
+enum LDKCOption_NoneZ COption_NoneZ_some(void);
+
+/**
+ * Constructs a new COption_NoneZ containing nothing
+ */
+enum LDKCOption_NoneZ COption_NoneZ_none(void);
+
+/**
+ * Frees any resources associated with the , if we are in the Some state
+ */
+void COption_NoneZ_free(enum LDKCOption_NoneZ _res);
+
+/**
+ * Creates a new CResult_CounterpartyChannelTransactionParametersDecodeErrorZ in the success state.
+ */
+struct LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_ok(struct LDKCounterpartyChannelTransactionParameters o);
+
+/**
+ * Creates a new CResult_CounterpartyChannelTransactionParametersDecodeErrorZ in the error state.
+ */
+struct LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_is_ok(const struct LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_CounterpartyChannelTransactionParametersDecodeErrorZ.
+ */
+void CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_free(struct LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_CounterpartyChannelTransactionParametersDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone(const struct LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_ChannelTransactionParametersDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ChannelTransactionParametersDecodeErrorZ CResult_ChannelTransactionParametersDecodeErrorZ_ok(struct LDKChannelTransactionParameters o);
+
+/**
+ * Creates a new CResult_ChannelTransactionParametersDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ChannelTransactionParametersDecodeErrorZ CResult_ChannelTransactionParametersDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ChannelTransactionParametersDecodeErrorZ_is_ok(const struct LDKCResult_ChannelTransactionParametersDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ChannelTransactionParametersDecodeErrorZ.
+ */
+void CResult_ChannelTransactionParametersDecodeErrorZ_free(struct LDKCResult_ChannelTransactionParametersDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_ChannelTransactionParametersDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_ChannelTransactionParametersDecodeErrorZ CResult_ChannelTransactionParametersDecodeErrorZ_clone(const struct LDKCResult_ChannelTransactionParametersDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_SignatureZ_free(struct LDKCVec_SignatureZ _res);
+
+/**
+ * Creates a new CResult_HolderCommitmentTransactionDecodeErrorZ in the success state.
+ */
+struct LDKCResult_HolderCommitmentTransactionDecodeErrorZ CResult_HolderCommitmentTransactionDecodeErrorZ_ok(struct LDKHolderCommitmentTransaction o);
+
+/**
+ * Creates a new CResult_HolderCommitmentTransactionDecodeErrorZ in the error state.
+ */
+struct LDKCResult_HolderCommitmentTransactionDecodeErrorZ CResult_HolderCommitmentTransactionDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_HolderCommitmentTransactionDecodeErrorZ_is_ok(const struct LDKCResult_HolderCommitmentTransactionDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_HolderCommitmentTransactionDecodeErrorZ.
+ */
+void CResult_HolderCommitmentTransactionDecodeErrorZ_free(struct LDKCResult_HolderCommitmentTransactionDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_HolderCommitmentTransactionDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_HolderCommitmentTransactionDecodeErrorZ CResult_HolderCommitmentTransactionDecodeErrorZ_clone(const struct LDKCResult_HolderCommitmentTransactionDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_BuiltCommitmentTransactionDecodeErrorZ in the success state.
+ */
+struct LDKCResult_BuiltCommitmentTransactionDecodeErrorZ CResult_BuiltCommitmentTransactionDecodeErrorZ_ok(struct LDKBuiltCommitmentTransaction o);
+
+/**
+ * Creates a new CResult_BuiltCommitmentTransactionDecodeErrorZ in the error state.
+ */
+struct LDKCResult_BuiltCommitmentTransactionDecodeErrorZ CResult_BuiltCommitmentTransactionDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_BuiltCommitmentTransactionDecodeErrorZ_is_ok(const struct LDKCResult_BuiltCommitmentTransactionDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_BuiltCommitmentTransactionDecodeErrorZ.
+ */
+void CResult_BuiltCommitmentTransactionDecodeErrorZ_free(struct LDKCResult_BuiltCommitmentTransactionDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_BuiltCommitmentTransactionDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_BuiltCommitmentTransactionDecodeErrorZ CResult_BuiltCommitmentTransactionDecodeErrorZ_clone(const struct LDKCResult_BuiltCommitmentTransactionDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_TrustedClosingTransactionNoneZ in the success state.
+ */
+struct LDKCResult_TrustedClosingTransactionNoneZ CResult_TrustedClosingTransactionNoneZ_ok(struct LDKTrustedClosingTransaction o);
+
+/**
+ * Creates a new CResult_TrustedClosingTransactionNoneZ in the error state.
+ */
+struct LDKCResult_TrustedClosingTransactionNoneZ CResult_TrustedClosingTransactionNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_TrustedClosingTransactionNoneZ_is_ok(const struct LDKCResult_TrustedClosingTransactionNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_TrustedClosingTransactionNoneZ.
+ */
+void CResult_TrustedClosingTransactionNoneZ_free(struct LDKCResult_TrustedClosingTransactionNoneZ _res);
+
+/**
+ * Creates a new CResult_CommitmentTransactionDecodeErrorZ in the success state.
+ */
+struct LDKCResult_CommitmentTransactionDecodeErrorZ CResult_CommitmentTransactionDecodeErrorZ_ok(struct LDKCommitmentTransaction o);
+
+/**
+ * Creates a new CResult_CommitmentTransactionDecodeErrorZ in the error state.
+ */
+struct LDKCResult_CommitmentTransactionDecodeErrorZ CResult_CommitmentTransactionDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_CommitmentTransactionDecodeErrorZ_is_ok(const struct LDKCResult_CommitmentTransactionDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_CommitmentTransactionDecodeErrorZ.
+ */
+void CResult_CommitmentTransactionDecodeErrorZ_free(struct LDKCResult_CommitmentTransactionDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_CommitmentTransactionDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_CommitmentTransactionDecodeErrorZ CResult_CommitmentTransactionDecodeErrorZ_clone(const struct LDKCResult_CommitmentTransactionDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_TrustedCommitmentTransactionNoneZ in the success state.
+ */
+struct LDKCResult_TrustedCommitmentTransactionNoneZ CResult_TrustedCommitmentTransactionNoneZ_ok(struct LDKTrustedCommitmentTransaction o);
+
+/**
+ * Creates a new CResult_TrustedCommitmentTransactionNoneZ in the error state.
+ */
+struct LDKCResult_TrustedCommitmentTransactionNoneZ CResult_TrustedCommitmentTransactionNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_TrustedCommitmentTransactionNoneZ_is_ok(const struct LDKCResult_TrustedCommitmentTransactionNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_TrustedCommitmentTransactionNoneZ.
+ */
+void CResult_TrustedCommitmentTransactionNoneZ_free(struct LDKCResult_TrustedCommitmentTransactionNoneZ _res);
+
+/**
+ * Creates a new CResult_CVec_SignatureZNoneZ in the success state.
+ */
+struct LDKCResult_CVec_SignatureZNoneZ CResult_CVec_SignatureZNoneZ_ok(struct LDKCVec_SignatureZ o);
+
+/**
+ * Creates a new CResult_CVec_SignatureZNoneZ in the error state.
+ */
+struct LDKCResult_CVec_SignatureZNoneZ CResult_CVec_SignatureZNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_CVec_SignatureZNoneZ_is_ok(const struct LDKCResult_CVec_SignatureZNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_CVec_SignatureZNoneZ.
+ */
+void CResult_CVec_SignatureZNoneZ_free(struct LDKCResult_CVec_SignatureZNoneZ _res);
+
+/**
+ * Creates a new CResult_CVec_SignatureZNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_CVec_SignatureZNoneZ CResult_CVec_SignatureZNoneZ_clone(const struct LDKCResult_CVec_SignatureZNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_ShutdownScriptDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ShutdownScriptDecodeErrorZ CResult_ShutdownScriptDecodeErrorZ_ok(struct LDKShutdownScript o);
+
+/**
+ * Creates a new CResult_ShutdownScriptDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ShutdownScriptDecodeErrorZ CResult_ShutdownScriptDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ShutdownScriptDecodeErrorZ_is_ok(const struct LDKCResult_ShutdownScriptDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ShutdownScriptDecodeErrorZ.
+ */
+void CResult_ShutdownScriptDecodeErrorZ_free(struct LDKCResult_ShutdownScriptDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_ShutdownScriptDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_ShutdownScriptDecodeErrorZ CResult_ShutdownScriptDecodeErrorZ_clone(const struct LDKCResult_ShutdownScriptDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_ShutdownScriptInvalidShutdownScriptZ in the success state.
+ */
+struct LDKCResult_ShutdownScriptInvalidShutdownScriptZ CResult_ShutdownScriptInvalidShutdownScriptZ_ok(struct LDKShutdownScript o);
+
+/**
+ * Creates a new CResult_ShutdownScriptInvalidShutdownScriptZ in the error state.
+ */
+struct LDKCResult_ShutdownScriptInvalidShutdownScriptZ CResult_ShutdownScriptInvalidShutdownScriptZ_err(struct LDKInvalidShutdownScript e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ShutdownScriptInvalidShutdownScriptZ_is_ok(const struct LDKCResult_ShutdownScriptInvalidShutdownScriptZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ShutdownScriptInvalidShutdownScriptZ.
+ */
+void CResult_ShutdownScriptInvalidShutdownScriptZ_free(struct LDKCResult_ShutdownScriptInvalidShutdownScriptZ _res);
+
+/**
+ * Creates a new CResult_ShutdownScriptInvalidShutdownScriptZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_ShutdownScriptInvalidShutdownScriptZ CResult_ShutdownScriptInvalidShutdownScriptZ_clone(const struct LDKCResult_ShutdownScriptInvalidShutdownScriptZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_NoneErrorZ in the success state.
+ */
+struct LDKCResult_NoneErrorZ CResult_NoneErrorZ_ok(void);
+
+/**
+ * Creates a new CResult_NoneErrorZ in the error state.
+ */
+struct LDKCResult_NoneErrorZ CResult_NoneErrorZ_err(enum LDKIOError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_NoneErrorZ_is_ok(const struct LDKCResult_NoneErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_NoneErrorZ.
+ */
+void CResult_NoneErrorZ_free(struct LDKCResult_NoneErrorZ _res);
+
+/**
+ * Creates a new CResult_NoneErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_NoneErrorZ CResult_NoneErrorZ_clone(const struct LDKCResult_NoneErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_RouteHopDecodeErrorZ in the success state.
+ */
+struct LDKCResult_RouteHopDecodeErrorZ CResult_RouteHopDecodeErrorZ_ok(struct LDKRouteHop o);
+
+/**
+ * Creates a new CResult_RouteHopDecodeErrorZ in the error state.
+ */
+struct LDKCResult_RouteHopDecodeErrorZ CResult_RouteHopDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_RouteHopDecodeErrorZ_is_ok(const struct LDKCResult_RouteHopDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_RouteHopDecodeErrorZ.
+ */
+void CResult_RouteHopDecodeErrorZ_free(struct LDKCResult_RouteHopDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_RouteHopDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_RouteHopDecodeErrorZ CResult_RouteHopDecodeErrorZ_clone(const struct LDKCResult_RouteHopDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_RouteHopZ_free(struct LDKCVec_RouteHopZ _res);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_CVec_RouteHopZZ_free(struct LDKCVec_CVec_RouteHopZZ _res);
+
+/**
+ * Creates a new CResult_RouteDecodeErrorZ in the success state.
+ */
+struct LDKCResult_RouteDecodeErrorZ CResult_RouteDecodeErrorZ_ok(struct LDKRoute o);
+
+/**
+ * Creates a new CResult_RouteDecodeErrorZ in the error state.
+ */
+struct LDKCResult_RouteDecodeErrorZ CResult_RouteDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_RouteDecodeErrorZ_is_ok(const struct LDKCResult_RouteDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_RouteDecodeErrorZ.
+ */
+void CResult_RouteDecodeErrorZ_free(struct LDKCResult_RouteDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_RouteDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_RouteDecodeErrorZ CResult_RouteDecodeErrorZ_clone(const struct LDKCResult_RouteDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_RouteParametersDecodeErrorZ in the success state.
+ */
+struct LDKCResult_RouteParametersDecodeErrorZ CResult_RouteParametersDecodeErrorZ_ok(struct LDKRouteParameters o);
+
+/**
+ * Creates a new CResult_RouteParametersDecodeErrorZ in the error state.
+ */
+struct LDKCResult_RouteParametersDecodeErrorZ CResult_RouteParametersDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_RouteParametersDecodeErrorZ_is_ok(const struct LDKCResult_RouteParametersDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_RouteParametersDecodeErrorZ.
+ */
+void CResult_RouteParametersDecodeErrorZ_free(struct LDKCResult_RouteParametersDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_RouteParametersDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_RouteParametersDecodeErrorZ CResult_RouteParametersDecodeErrorZ_clone(const struct LDKCResult_RouteParametersDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_RouteHintZ_free(struct LDKCVec_RouteHintZ _res);
+
+/**
+ * Constructs a new COption_u64Z containing a u64
+ */
+struct LDKCOption_u64Z COption_u64Z_some(uint64_t o);
+
+/**
+ * Constructs a new COption_u64Z containing nothing
+ */
+struct LDKCOption_u64Z COption_u64Z_none(void);
+
+/**
+ * Frees any resources associated with the u64, if we are in the Some state
+ */
+void COption_u64Z_free(struct LDKCOption_u64Z _res);
+
+/**
+ * Creates a new COption_u64Z which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCOption_u64Z COption_u64Z_clone(const struct LDKCOption_u64Z *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_PaymentParametersDecodeErrorZ in the success state.
+ */
+struct LDKCResult_PaymentParametersDecodeErrorZ CResult_PaymentParametersDecodeErrorZ_ok(struct LDKPaymentParameters o);
+
+/**
+ * Creates a new CResult_PaymentParametersDecodeErrorZ in the error state.
+ */
+struct LDKCResult_PaymentParametersDecodeErrorZ CResult_PaymentParametersDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_PaymentParametersDecodeErrorZ_is_ok(const struct LDKCResult_PaymentParametersDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_PaymentParametersDecodeErrorZ.
+ */
+void CResult_PaymentParametersDecodeErrorZ_free(struct LDKCResult_PaymentParametersDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_PaymentParametersDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_PaymentParametersDecodeErrorZ CResult_PaymentParametersDecodeErrorZ_clone(const struct LDKCResult_PaymentParametersDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_RouteHintHopZ_free(struct LDKCVec_RouteHintHopZ _res);
+
+/**
+ * Creates a new CResult_RouteHintDecodeErrorZ in the success state.
+ */
+struct LDKCResult_RouteHintDecodeErrorZ CResult_RouteHintDecodeErrorZ_ok(struct LDKRouteHint o);
+
+/**
+ * Creates a new CResult_RouteHintDecodeErrorZ in the error state.
+ */
+struct LDKCResult_RouteHintDecodeErrorZ CResult_RouteHintDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_RouteHintDecodeErrorZ_is_ok(const struct LDKCResult_RouteHintDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_RouteHintDecodeErrorZ.
+ */
+void CResult_RouteHintDecodeErrorZ_free(struct LDKCResult_RouteHintDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_RouteHintDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_RouteHintDecodeErrorZ CResult_RouteHintDecodeErrorZ_clone(const struct LDKCResult_RouteHintDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_RouteHintHopDecodeErrorZ in the success state.
+ */
+struct LDKCResult_RouteHintHopDecodeErrorZ CResult_RouteHintHopDecodeErrorZ_ok(struct LDKRouteHintHop o);
+
+/**
+ * Creates a new CResult_RouteHintHopDecodeErrorZ in the error state.
+ */
+struct LDKCResult_RouteHintHopDecodeErrorZ CResult_RouteHintHopDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_RouteHintHopDecodeErrorZ_is_ok(const struct LDKCResult_RouteHintHopDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_RouteHintHopDecodeErrorZ.
+ */
+void CResult_RouteHintHopDecodeErrorZ_free(struct LDKCResult_RouteHintHopDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_RouteHintHopDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_RouteHintHopDecodeErrorZ CResult_RouteHintHopDecodeErrorZ_clone(const struct LDKCResult_RouteHintHopDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_ChannelDetailsZ_free(struct LDKCVec_ChannelDetailsZ _res);
+
+/**
+ * Creates a new CResult_RouteLightningErrorZ in the success state.
+ */
+struct LDKCResult_RouteLightningErrorZ CResult_RouteLightningErrorZ_ok(struct LDKRoute o);
+
+/**
+ * Creates a new CResult_RouteLightningErrorZ in the error state.
+ */
+struct LDKCResult_RouteLightningErrorZ CResult_RouteLightningErrorZ_err(struct LDKLightningError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_RouteLightningErrorZ_is_ok(const struct LDKCResult_RouteLightningErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_RouteLightningErrorZ.
+ */
+void CResult_RouteLightningErrorZ_free(struct LDKCResult_RouteLightningErrorZ _res);
+
+/**
+ * Creates a new CResult_RouteLightningErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_RouteLightningErrorZ CResult_RouteLightningErrorZ_clone(const struct LDKCResult_RouteLightningErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_TxOutAccessErrorZ in the success state.
+ */
+struct LDKCResult_TxOutAccessErrorZ CResult_TxOutAccessErrorZ_ok(struct LDKTxOut o);
+
+/**
+ * Creates a new CResult_TxOutAccessErrorZ in the error state.
+ */
+struct LDKCResult_TxOutAccessErrorZ CResult_TxOutAccessErrorZ_err(enum LDKAccessError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_TxOutAccessErrorZ_is_ok(const struct LDKCResult_TxOutAccessErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_TxOutAccessErrorZ.
+ */
+void CResult_TxOutAccessErrorZ_free(struct LDKCResult_TxOutAccessErrorZ _res);
+
+/**
+ * Creates a new CResult_TxOutAccessErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_TxOutAccessErrorZ CResult_TxOutAccessErrorZ_clone(const struct LDKCResult_TxOutAccessErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new tuple which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKC2Tuple_usizeTransactionZ C2Tuple_usizeTransactionZ_clone(const struct LDKC2Tuple_usizeTransactionZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new C2Tuple_usizeTransactionZ from the contained elements.
+ */
+struct LDKC2Tuple_usizeTransactionZ C2Tuple_usizeTransactionZ_new(uintptr_t a, struct LDKTransaction b);
+
+/**
+ * Frees any resources used by the C2Tuple_usizeTransactionZ.
+ */
+void C2Tuple_usizeTransactionZ_free(struct LDKC2Tuple_usizeTransactionZ _res);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_C2Tuple_usizeTransactionZZ_free(struct LDKCVec_C2Tuple_usizeTransactionZZ _res);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_TxidZ_free(struct LDKCVec_TxidZ _res);
+
+/**
+ * Creates a new CResult_NoneChannelMonitorUpdateErrZ in the success state.
+ */
+struct LDKCResult_NoneChannelMonitorUpdateErrZ CResult_NoneChannelMonitorUpdateErrZ_ok(void);
+
+/**
+ * Creates a new CResult_NoneChannelMonitorUpdateErrZ in the error state.
+ */
+struct LDKCResult_NoneChannelMonitorUpdateErrZ CResult_NoneChannelMonitorUpdateErrZ_err(enum LDKChannelMonitorUpdateErr e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_NoneChannelMonitorUpdateErrZ_is_ok(const struct LDKCResult_NoneChannelMonitorUpdateErrZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_NoneChannelMonitorUpdateErrZ.
+ */
+void CResult_NoneChannelMonitorUpdateErrZ_free(struct LDKCResult_NoneChannelMonitorUpdateErrZ _res);
+
+/**
+ * Creates a new CResult_NoneChannelMonitorUpdateErrZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_NoneChannelMonitorUpdateErrZ CResult_NoneChannelMonitorUpdateErrZ_clone(const struct LDKCResult_NoneChannelMonitorUpdateErrZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_MonitorEventZ_free(struct LDKCVec_MonitorEventZ _res);
+
+/**
+ * Constructs a new COption_C2Tuple_usizeTransactionZZ containing a crate::c_types::derived::C2Tuple_usizeTransactionZ
+ */
+struct LDKCOption_C2Tuple_usizeTransactionZZ COption_C2Tuple_usizeTransactionZZ_some(struct LDKC2Tuple_usizeTransactionZ o);
+
+/**
+ * Constructs a new COption_C2Tuple_usizeTransactionZZ containing nothing
+ */
+struct LDKCOption_C2Tuple_usizeTransactionZZ COption_C2Tuple_usizeTransactionZZ_none(void);
+
+/**
+ * Frees any resources associated with the crate::c_types::derived::C2Tuple_usizeTransactionZ, if we are in the Some state
+ */
+void COption_C2Tuple_usizeTransactionZZ_free(struct LDKCOption_C2Tuple_usizeTransactionZZ _res);
+
+/**
+ * Creates a new COption_C2Tuple_usizeTransactionZZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCOption_C2Tuple_usizeTransactionZZ COption_C2Tuple_usizeTransactionZZ_clone(const struct LDKCOption_C2Tuple_usizeTransactionZZ *NONNULL_PTR orig);
+
+/**
+ * Constructs a new COption_ClosureReasonZ containing a crate::lightning::util::events::ClosureReason
+ */
+struct LDKCOption_ClosureReasonZ COption_ClosureReasonZ_some(struct LDKClosureReason o);
+
+/**
+ * Constructs a new COption_ClosureReasonZ containing nothing
+ */
+struct LDKCOption_ClosureReasonZ COption_ClosureReasonZ_none(void);
+
+/**
+ * Frees any resources associated with the crate::lightning::util::events::ClosureReason, if we are in the Some state
+ */
+void COption_ClosureReasonZ_free(struct LDKCOption_ClosureReasonZ _res);
+
+/**
+ * Creates a new COption_ClosureReasonZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCOption_ClosureReasonZ COption_ClosureReasonZ_clone(const struct LDKCOption_ClosureReasonZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_COption_ClosureReasonZDecodeErrorZ in the success state.
+ */
+struct LDKCResult_COption_ClosureReasonZDecodeErrorZ CResult_COption_ClosureReasonZDecodeErrorZ_ok(struct LDKCOption_ClosureReasonZ o);
+
+/**
+ * Creates a new CResult_COption_ClosureReasonZDecodeErrorZ in the error state.
+ */
+struct LDKCResult_COption_ClosureReasonZDecodeErrorZ CResult_COption_ClosureReasonZDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_COption_ClosureReasonZDecodeErrorZ_is_ok(const struct LDKCResult_COption_ClosureReasonZDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_COption_ClosureReasonZDecodeErrorZ.
+ */
+void CResult_COption_ClosureReasonZDecodeErrorZ_free(struct LDKCResult_COption_ClosureReasonZDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_COption_ClosureReasonZDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_COption_ClosureReasonZDecodeErrorZ CResult_COption_ClosureReasonZDecodeErrorZ_clone(const struct LDKCResult_COption_ClosureReasonZDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Constructs a new COption_NetworkUpdateZ containing a crate::lightning::routing::network_graph::NetworkUpdate
+ */
+struct LDKCOption_NetworkUpdateZ COption_NetworkUpdateZ_some(struct LDKNetworkUpdate o);
+
+/**
+ * Constructs a new COption_NetworkUpdateZ containing nothing
+ */
+struct LDKCOption_NetworkUpdateZ COption_NetworkUpdateZ_none(void);
+
+/**
+ * Frees any resources associated with the crate::lightning::routing::network_graph::NetworkUpdate, if we are in the Some state
+ */
+void COption_NetworkUpdateZ_free(struct LDKCOption_NetworkUpdateZ _res);
+
+/**
+ * Creates a new COption_NetworkUpdateZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCOption_NetworkUpdateZ COption_NetworkUpdateZ_clone(const struct LDKCOption_NetworkUpdateZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_SpendableOutputDescriptorZ_free(struct LDKCVec_SpendableOutputDescriptorZ _res);
+
+/**
+ * Constructs a new COption_EventZ containing a crate::lightning::util::events::Event
+ */
+struct LDKCOption_EventZ COption_EventZ_some(struct LDKEvent o);
+
+/**
+ * Constructs a new COption_EventZ containing nothing
+ */
+struct LDKCOption_EventZ COption_EventZ_none(void);
+
+/**
+ * Frees any resources associated with the crate::lightning::util::events::Event, if we are in the Some state
+ */
+void COption_EventZ_free(struct LDKCOption_EventZ _res);
+
+/**
+ * Creates a new COption_EventZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCOption_EventZ COption_EventZ_clone(const struct LDKCOption_EventZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_COption_EventZDecodeErrorZ in the success state.
+ */
+struct LDKCResult_COption_EventZDecodeErrorZ CResult_COption_EventZDecodeErrorZ_ok(struct LDKCOption_EventZ o);
+
+/**
+ * Creates a new CResult_COption_EventZDecodeErrorZ in the error state.
+ */
+struct LDKCResult_COption_EventZDecodeErrorZ CResult_COption_EventZDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_COption_EventZDecodeErrorZ_is_ok(const struct LDKCResult_COption_EventZDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_COption_EventZDecodeErrorZ.
+ */
+void CResult_COption_EventZDecodeErrorZ_free(struct LDKCResult_COption_EventZDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_COption_EventZDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_COption_EventZDecodeErrorZ CResult_COption_EventZDecodeErrorZ_clone(const struct LDKCResult_COption_EventZDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_MessageSendEventZ_free(struct LDKCVec_MessageSendEventZ _res);
+
+/**
+ * Creates a new CResult_FixedPenaltyScorerDecodeErrorZ in the success state.
+ */
+struct LDKCResult_FixedPenaltyScorerDecodeErrorZ CResult_FixedPenaltyScorerDecodeErrorZ_ok(struct LDKFixedPenaltyScorer o);
+
+/**
+ * Creates a new CResult_FixedPenaltyScorerDecodeErrorZ in the error state.
+ */
+struct LDKCResult_FixedPenaltyScorerDecodeErrorZ CResult_FixedPenaltyScorerDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_FixedPenaltyScorerDecodeErrorZ_is_ok(const struct LDKCResult_FixedPenaltyScorerDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_FixedPenaltyScorerDecodeErrorZ.
+ */
+void CResult_FixedPenaltyScorerDecodeErrorZ_free(struct LDKCResult_FixedPenaltyScorerDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_FixedPenaltyScorerDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_FixedPenaltyScorerDecodeErrorZ CResult_FixedPenaltyScorerDecodeErrorZ_clone(const struct LDKCResult_FixedPenaltyScorerDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_ScoringParametersDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ScoringParametersDecodeErrorZ CResult_ScoringParametersDecodeErrorZ_ok(struct LDKScoringParameters o);
+
+/**
+ * Creates a new CResult_ScoringParametersDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ScoringParametersDecodeErrorZ CResult_ScoringParametersDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ScoringParametersDecodeErrorZ_is_ok(const struct LDKCResult_ScoringParametersDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ScoringParametersDecodeErrorZ.
+ */
+void CResult_ScoringParametersDecodeErrorZ_free(struct LDKCResult_ScoringParametersDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_ScoringParametersDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_ScoringParametersDecodeErrorZ CResult_ScoringParametersDecodeErrorZ_clone(const struct LDKCResult_ScoringParametersDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_ScorerDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ScorerDecodeErrorZ CResult_ScorerDecodeErrorZ_ok(struct LDKScorer o);
+
+/**
+ * Creates a new CResult_ScorerDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ScorerDecodeErrorZ CResult_ScorerDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ScorerDecodeErrorZ_is_ok(const struct LDKCResult_ScorerDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ScorerDecodeErrorZ.
+ */
+void CResult_ScorerDecodeErrorZ_free(struct LDKCResult_ScorerDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_ProbabilisticScorerDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ProbabilisticScorerDecodeErrorZ CResult_ProbabilisticScorerDecodeErrorZ_ok(struct LDKProbabilisticScorer o);
+
+/**
+ * Creates a new CResult_ProbabilisticScorerDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ProbabilisticScorerDecodeErrorZ CResult_ProbabilisticScorerDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ProbabilisticScorerDecodeErrorZ_is_ok(const struct LDKCResult_ProbabilisticScorerDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ProbabilisticScorerDecodeErrorZ.
+ */
+void CResult_ProbabilisticScorerDecodeErrorZ_free(struct LDKCResult_ProbabilisticScorerDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_InitFeaturesDecodeErrorZ in the success state.
+ */
+struct LDKCResult_InitFeaturesDecodeErrorZ CResult_InitFeaturesDecodeErrorZ_ok(struct LDKInitFeatures o);
+
+/**
+ * Creates a new CResult_InitFeaturesDecodeErrorZ in the error state.
+ */
+struct LDKCResult_InitFeaturesDecodeErrorZ CResult_InitFeaturesDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_InitFeaturesDecodeErrorZ_is_ok(const struct LDKCResult_InitFeaturesDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_InitFeaturesDecodeErrorZ.
+ */
+void CResult_InitFeaturesDecodeErrorZ_free(struct LDKCResult_InitFeaturesDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_ChannelFeaturesDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ChannelFeaturesDecodeErrorZ CResult_ChannelFeaturesDecodeErrorZ_ok(struct LDKChannelFeatures o);
+
+/**
+ * Creates a new CResult_ChannelFeaturesDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ChannelFeaturesDecodeErrorZ CResult_ChannelFeaturesDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ChannelFeaturesDecodeErrorZ_is_ok(const struct LDKCResult_ChannelFeaturesDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ChannelFeaturesDecodeErrorZ.
+ */
+void CResult_ChannelFeaturesDecodeErrorZ_free(struct LDKCResult_ChannelFeaturesDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_NodeFeaturesDecodeErrorZ in the success state.
+ */
+struct LDKCResult_NodeFeaturesDecodeErrorZ CResult_NodeFeaturesDecodeErrorZ_ok(struct LDKNodeFeatures o);
+
+/**
+ * Creates a new CResult_NodeFeaturesDecodeErrorZ in the error state.
+ */
+struct LDKCResult_NodeFeaturesDecodeErrorZ CResult_NodeFeaturesDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_NodeFeaturesDecodeErrorZ_is_ok(const struct LDKCResult_NodeFeaturesDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_NodeFeaturesDecodeErrorZ.
+ */
+void CResult_NodeFeaturesDecodeErrorZ_free(struct LDKCResult_NodeFeaturesDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_InvoiceFeaturesDecodeErrorZ in the success state.
+ */
+struct LDKCResult_InvoiceFeaturesDecodeErrorZ CResult_InvoiceFeaturesDecodeErrorZ_ok(struct LDKInvoiceFeatures o);
+
+/**
+ * Creates a new CResult_InvoiceFeaturesDecodeErrorZ in the error state.
+ */
+struct LDKCResult_InvoiceFeaturesDecodeErrorZ CResult_InvoiceFeaturesDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_InvoiceFeaturesDecodeErrorZ_is_ok(const struct LDKCResult_InvoiceFeaturesDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_InvoiceFeaturesDecodeErrorZ.
+ */
+void CResult_InvoiceFeaturesDecodeErrorZ_free(struct LDKCResult_InvoiceFeaturesDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_ChannelTypeFeaturesDecodeErrorZ in the success state.
+ */
+struct LDKCResult_ChannelTypeFeaturesDecodeErrorZ CResult_ChannelTypeFeaturesDecodeErrorZ_ok(struct LDKChannelTypeFeatures o);
+
+/**
+ * Creates a new CResult_ChannelTypeFeaturesDecodeErrorZ in the error state.
+ */
+struct LDKCResult_ChannelTypeFeaturesDecodeErrorZ CResult_ChannelTypeFeaturesDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_ChannelTypeFeaturesDecodeErrorZ_is_ok(const struct LDKCResult_ChannelTypeFeaturesDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_ChannelTypeFeaturesDecodeErrorZ.
+ */
+void CResult_ChannelTypeFeaturesDecodeErrorZ_free(struct LDKCResult_ChannelTypeFeaturesDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_DelayedPaymentOutputDescriptorDecodeErrorZ in the success state.
+ */
+struct LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_ok(struct LDKDelayedPaymentOutputDescriptor o);
+
+/**
+ * Creates a new CResult_DelayedPaymentOutputDescriptorDecodeErrorZ in the error state.
+ */
+struct LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_is_ok(const struct LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_DelayedPaymentOutputDescriptorDecodeErrorZ.
+ */
+void CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_free(struct LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_DelayedPaymentOutputDescriptorDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone(const struct LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_StaticPaymentOutputDescriptorDecodeErrorZ in the success state.
+ */
+struct LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ CResult_StaticPaymentOutputDescriptorDecodeErrorZ_ok(struct LDKStaticPaymentOutputDescriptor o);
+
+/**
+ * Creates a new CResult_StaticPaymentOutputDescriptorDecodeErrorZ in the error state.
+ */
+struct LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ CResult_StaticPaymentOutputDescriptorDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_StaticPaymentOutputDescriptorDecodeErrorZ_is_ok(const struct LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_StaticPaymentOutputDescriptorDecodeErrorZ.
+ */
+void CResult_StaticPaymentOutputDescriptorDecodeErrorZ_free(struct LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_StaticPaymentOutputDescriptorDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone(const struct LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_SpendableOutputDescriptorDecodeErrorZ in the success state.
+ */
+struct LDKCResult_SpendableOutputDescriptorDecodeErrorZ CResult_SpendableOutputDescriptorDecodeErrorZ_ok(struct LDKSpendableOutputDescriptor o);
+
+/**
+ * Creates a new CResult_SpendableOutputDescriptorDecodeErrorZ in the error state.
+ */
+struct LDKCResult_SpendableOutputDescriptorDecodeErrorZ CResult_SpendableOutputDescriptorDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_SpendableOutputDescriptorDecodeErrorZ_is_ok(const struct LDKCResult_SpendableOutputDescriptorDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_SpendableOutputDescriptorDecodeErrorZ.
+ */
+void CResult_SpendableOutputDescriptorDecodeErrorZ_free(struct LDKCResult_SpendableOutputDescriptorDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_SpendableOutputDescriptorDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_SpendableOutputDescriptorDecodeErrorZ CResult_SpendableOutputDescriptorDecodeErrorZ_clone(const struct LDKCResult_SpendableOutputDescriptorDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_PaymentPreimageZ_free(struct LDKCVec_PaymentPreimageZ _res);
+
+/**
+ * Creates a new tuple which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKC2Tuple_SignatureCVec_SignatureZZ C2Tuple_SignatureCVec_SignatureZZ_clone(const struct LDKC2Tuple_SignatureCVec_SignatureZZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new C2Tuple_SignatureCVec_SignatureZZ from the contained elements.
+ */
+struct LDKC2Tuple_SignatureCVec_SignatureZZ C2Tuple_SignatureCVec_SignatureZZ_new(struct LDKSignature a, struct LDKCVec_SignatureZ b);
+
+/**
+ * Frees any resources used by the C2Tuple_SignatureCVec_SignatureZZ.
+ */
+void C2Tuple_SignatureCVec_SignatureZZ_free(struct LDKC2Tuple_SignatureCVec_SignatureZZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ in the success state.
+ */
+struct LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_ok(struct LDKC2Tuple_SignatureCVec_SignatureZZ o);
+
+/**
+ * Creates a new CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ in the error state.
+ */
+struct LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_is_ok(const struct LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ.
+ */
+void CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_free(struct LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone(const struct LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_SignatureNoneZ in the success state.
+ */
+struct LDKCResult_SignatureNoneZ CResult_SignatureNoneZ_ok(struct LDKSignature o);
+
+/**
+ * Creates a new CResult_SignatureNoneZ in the error state.
+ */
+struct LDKCResult_SignatureNoneZ CResult_SignatureNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_SignatureNoneZ_is_ok(const struct LDKCResult_SignatureNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_SignatureNoneZ.
+ */
+void CResult_SignatureNoneZ_free(struct LDKCResult_SignatureNoneZ _res);
+
+/**
+ * Creates a new CResult_SignatureNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_SignatureNoneZ CResult_SignatureNoneZ_clone(const struct LDKCResult_SignatureNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new tuple which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKC2Tuple_SignatureSignatureZ C2Tuple_SignatureSignatureZ_clone(const struct LDKC2Tuple_SignatureSignatureZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new C2Tuple_SignatureSignatureZ from the contained elements.
+ */
+struct LDKC2Tuple_SignatureSignatureZ C2Tuple_SignatureSignatureZ_new(struct LDKSignature a, struct LDKSignature b);
+
+/**
+ * Frees any resources used by the C2Tuple_SignatureSignatureZ.
+ */
+void C2Tuple_SignatureSignatureZ_free(struct LDKC2Tuple_SignatureSignatureZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_SignatureSignatureZNoneZ in the success state.
+ */
+struct LDKCResult_C2Tuple_SignatureSignatureZNoneZ CResult_C2Tuple_SignatureSignatureZNoneZ_ok(struct LDKC2Tuple_SignatureSignatureZ o);
+
+/**
+ * Creates a new CResult_C2Tuple_SignatureSignatureZNoneZ in the error state.
+ */
+struct LDKCResult_C2Tuple_SignatureSignatureZNoneZ CResult_C2Tuple_SignatureSignatureZNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_C2Tuple_SignatureSignatureZNoneZ_is_ok(const struct LDKCResult_C2Tuple_SignatureSignatureZNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_C2Tuple_SignatureSignatureZNoneZ.
+ */
+void CResult_C2Tuple_SignatureSignatureZNoneZ_free(struct LDKCResult_C2Tuple_SignatureSignatureZNoneZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_SignatureSignatureZNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_C2Tuple_SignatureSignatureZNoneZ CResult_C2Tuple_SignatureSignatureZNoneZ_clone(const struct LDKCResult_C2Tuple_SignatureSignatureZNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_SecretKeyNoneZ in the success state.
+ */
+struct LDKCResult_SecretKeyNoneZ CResult_SecretKeyNoneZ_ok(struct LDKSecretKey o);
+
+/**
+ * Creates a new CResult_SecretKeyNoneZ in the error state.
+ */
+struct LDKCResult_SecretKeyNoneZ CResult_SecretKeyNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_SecretKeyNoneZ_is_ok(const struct LDKCResult_SecretKeyNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_SecretKeyNoneZ.
+ */
+void CResult_SecretKeyNoneZ_free(struct LDKCResult_SecretKeyNoneZ _res);
+
+/**
+ * Creates a new CResult_SecretKeyNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_SecretKeyNoneZ CResult_SecretKeyNoneZ_clone(const struct LDKCResult_SecretKeyNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_SignDecodeErrorZ in the success state.
+ */
+struct LDKCResult_SignDecodeErrorZ CResult_SignDecodeErrorZ_ok(struct LDKSign o);
+
+/**
+ * Creates a new CResult_SignDecodeErrorZ in the error state.
+ */
+struct LDKCResult_SignDecodeErrorZ CResult_SignDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_SignDecodeErrorZ_is_ok(const struct LDKCResult_SignDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_SignDecodeErrorZ.
+ */
+void CResult_SignDecodeErrorZ_free(struct LDKCResult_SignDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_SignDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_SignDecodeErrorZ CResult_SignDecodeErrorZ_clone(const struct LDKCResult_SignDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_u5Z_free(struct LDKCVec_u5Z _res);
+
+/**
+ * Creates a new CResult_RecoverableSignatureNoneZ in the success state.
+ */
+struct LDKCResult_RecoverableSignatureNoneZ CResult_RecoverableSignatureNoneZ_ok(struct LDKRecoverableSignature o);
+
+/**
+ * Creates a new CResult_RecoverableSignatureNoneZ in the error state.
+ */
+struct LDKCResult_RecoverableSignatureNoneZ CResult_RecoverableSignatureNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_RecoverableSignatureNoneZ_is_ok(const struct LDKCResult_RecoverableSignatureNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_RecoverableSignatureNoneZ.
+ */
+void CResult_RecoverableSignatureNoneZ_free(struct LDKCResult_RecoverableSignatureNoneZ _res);
+
+/**
+ * Creates a new CResult_RecoverableSignatureNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_RecoverableSignatureNoneZ CResult_RecoverableSignatureNoneZ_clone(const struct LDKCResult_RecoverableSignatureNoneZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_u8Z_free(struct LDKCVec_u8Z _res);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_CVec_u8ZZ_free(struct LDKCVec_CVec_u8ZZ _res);
+
+/**
+ * Creates a new CResult_CVec_CVec_u8ZZNoneZ in the success state.
+ */
+struct LDKCResult_CVec_CVec_u8ZZNoneZ CResult_CVec_CVec_u8ZZNoneZ_ok(struct LDKCVec_CVec_u8ZZ o);
+
+/**
+ * Creates a new CResult_CVec_CVec_u8ZZNoneZ in the error state.
+ */
+struct LDKCResult_CVec_CVec_u8ZZNoneZ CResult_CVec_CVec_u8ZZNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_CVec_CVec_u8ZZNoneZ_is_ok(const struct LDKCResult_CVec_CVec_u8ZZNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_CVec_CVec_u8ZZNoneZ.
+ */
+void CResult_CVec_CVec_u8ZZNoneZ_free(struct LDKCResult_CVec_CVec_u8ZZNoneZ _res);
+
+/**
+ * Creates a new CResult_CVec_CVec_u8ZZNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_CVec_CVec_u8ZZNoneZ CResult_CVec_CVec_u8ZZNoneZ_clone(const struct LDKCResult_CVec_CVec_u8ZZNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_InMemorySignerDecodeErrorZ in the success state.
+ */
+struct LDKCResult_InMemorySignerDecodeErrorZ CResult_InMemorySignerDecodeErrorZ_ok(struct LDKInMemorySigner o);
+
+/**
+ * Creates a new CResult_InMemorySignerDecodeErrorZ in the error state.
+ */
+struct LDKCResult_InMemorySignerDecodeErrorZ CResult_InMemorySignerDecodeErrorZ_err(struct LDKDecodeError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_InMemorySignerDecodeErrorZ_is_ok(const struct LDKCResult_InMemorySignerDecodeErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_InMemorySignerDecodeErrorZ.
+ */
+void CResult_InMemorySignerDecodeErrorZ_free(struct LDKCResult_InMemorySignerDecodeErrorZ _res);
+
+/**
+ * Creates a new CResult_InMemorySignerDecodeErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_InMemorySignerDecodeErrorZ CResult_InMemorySignerDecodeErrorZ_clone(const struct LDKCResult_InMemorySignerDecodeErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_TxOutZ_free(struct LDKCVec_TxOutZ _res);
+
+/**
+ * Creates a new CResult_TransactionNoneZ in the success state.
+ */
+struct LDKCResult_TransactionNoneZ CResult_TransactionNoneZ_ok(struct LDKTransaction o);
+
+/**
+ * Creates a new CResult_TransactionNoneZ in the error state.
+ */
+struct LDKCResult_TransactionNoneZ CResult_TransactionNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_TransactionNoneZ_is_ok(const struct LDKCResult_TransactionNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_TransactionNoneZ.
+ */
+void CResult_TransactionNoneZ_free(struct LDKCResult_TransactionNoneZ _res);
+
+/**
+ * Creates a new CResult_TransactionNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_TransactionNoneZ CResult_TransactionNoneZ_clone(const struct LDKCResult_TransactionNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new C2Tuple_BlockHashChannelMonitorZ from the contained elements.
+ */
+struct LDKC2Tuple_BlockHashChannelMonitorZ C2Tuple_BlockHashChannelMonitorZ_new(struct LDKThirtyTwoBytes a, struct LDKChannelMonitor b);
+
+/**
+ * Frees any resources used by the C2Tuple_BlockHashChannelMonitorZ.
+ */
+void C2Tuple_BlockHashChannelMonitorZ_free(struct LDKC2Tuple_BlockHashChannelMonitorZ _res);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_C2Tuple_BlockHashChannelMonitorZZ_free(struct LDKCVec_C2Tuple_BlockHashChannelMonitorZZ _res);
+
+/**
+ * Creates a new CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ in the success state.
+ */
+struct LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_ok(struct LDKCVec_C2Tuple_BlockHashChannelMonitorZZ o);
+
+/**
+ * Creates a new CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ in the error state.
+ */
+struct LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_err(enum LDKIOError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_is_ok(const struct LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ.
+ */
+void CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_free(struct LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ _res);
+
+/**
+ * Constructs a new COption_u16Z containing a u16
+ */
+struct LDKCOption_u16Z COption_u16Z_some(uint16_t o);
+
+/**
+ * Constructs a new COption_u16Z containing nothing
+ */
+struct LDKCOption_u16Z COption_u16Z_none(void);
+
+/**
+ * Frees any resources associated with the u16, if we are in the Some state
+ */
+void COption_u16Z_free(struct LDKCOption_u16Z _res);
+
+/**
+ * Creates a new COption_u16Z which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCOption_u16Z COption_u16Z_clone(const struct LDKCOption_u16Z *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_NoneAPIErrorZ in the success state.
+ */
+struct LDKCResult_NoneAPIErrorZ CResult_NoneAPIErrorZ_ok(void);
+
+/**
+ * Creates a new CResult_NoneAPIErrorZ in the error state.
+ */
+struct LDKCResult_NoneAPIErrorZ CResult_NoneAPIErrorZ_err(struct LDKAPIError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_NoneAPIErrorZ_is_ok(const struct LDKCResult_NoneAPIErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_NoneAPIErrorZ.
+ */
+void CResult_NoneAPIErrorZ_free(struct LDKCResult_NoneAPIErrorZ _res);
+
+/**
+ * Creates a new CResult_NoneAPIErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_NoneAPIErrorZ CResult_NoneAPIErrorZ_clone(const struct LDKCResult_NoneAPIErrorZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_CResult_NoneAPIErrorZZ_free(struct LDKCVec_CResult_NoneAPIErrorZZ _res);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_APIErrorZ_free(struct LDKCVec_APIErrorZ _res);
+
+/**
+ * Creates a new CResult__u832APIErrorZ in the success state.
+ */
+struct LDKCResult__u832APIErrorZ CResult__u832APIErrorZ_ok(struct LDKThirtyTwoBytes o);
+
+/**
+ * Creates a new CResult__u832APIErrorZ in the error state.
+ */
+struct LDKCResult__u832APIErrorZ CResult__u832APIErrorZ_err(struct LDKAPIError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult__u832APIErrorZ_is_ok(const struct LDKCResult__u832APIErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult__u832APIErrorZ.
+ */
+void CResult__u832APIErrorZ_free(struct LDKCResult__u832APIErrorZ _res);
+
+/**
+ * Creates a new CResult__u832APIErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult__u832APIErrorZ CResult__u832APIErrorZ_clone(const struct LDKCResult__u832APIErrorZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_PaymentIdPaymentSendFailureZ in the success state.
+ */
+struct LDKCResult_PaymentIdPaymentSendFailureZ CResult_PaymentIdPaymentSendFailureZ_ok(struct LDKThirtyTwoBytes o);
+
+/**
+ * Creates a new CResult_PaymentIdPaymentSendFailureZ in the error state.
+ */
+struct LDKCResult_PaymentIdPaymentSendFailureZ CResult_PaymentIdPaymentSendFailureZ_err(struct LDKPaymentSendFailure e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_PaymentIdPaymentSendFailureZ_is_ok(const struct LDKCResult_PaymentIdPaymentSendFailureZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_PaymentIdPaymentSendFailureZ.
+ */
+void CResult_PaymentIdPaymentSendFailureZ_free(struct LDKCResult_PaymentIdPaymentSendFailureZ _res);
+
+/**
+ * Creates a new CResult_PaymentIdPaymentSendFailureZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_PaymentIdPaymentSendFailureZ CResult_PaymentIdPaymentSendFailureZ_clone(const struct LDKCResult_PaymentIdPaymentSendFailureZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_NonePaymentSendFailureZ in the success state.
+ */
+struct LDKCResult_NonePaymentSendFailureZ CResult_NonePaymentSendFailureZ_ok(void);
+
+/**
+ * Creates a new CResult_NonePaymentSendFailureZ in the error state.
+ */
+struct LDKCResult_NonePaymentSendFailureZ CResult_NonePaymentSendFailureZ_err(struct LDKPaymentSendFailure e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_NonePaymentSendFailureZ_is_ok(const struct LDKCResult_NonePaymentSendFailureZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_NonePaymentSendFailureZ.
+ */
+void CResult_NonePaymentSendFailureZ_free(struct LDKCResult_NonePaymentSendFailureZ _res);
+
+/**
+ * Creates a new CResult_NonePaymentSendFailureZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_NonePaymentSendFailureZ CResult_NonePaymentSendFailureZ_clone(const struct LDKCResult_NonePaymentSendFailureZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new tuple which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKC2Tuple_PaymentHashPaymentIdZ C2Tuple_PaymentHashPaymentIdZ_clone(const struct LDKC2Tuple_PaymentHashPaymentIdZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new C2Tuple_PaymentHashPaymentIdZ from the contained elements.
+ */
+struct LDKC2Tuple_PaymentHashPaymentIdZ C2Tuple_PaymentHashPaymentIdZ_new(struct LDKThirtyTwoBytes a, struct LDKThirtyTwoBytes b);
+
+/**
+ * Frees any resources used by the C2Tuple_PaymentHashPaymentIdZ.
+ */
+void C2Tuple_PaymentHashPaymentIdZ_free(struct LDKC2Tuple_PaymentHashPaymentIdZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ in the success state.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_ok(struct LDKC2Tuple_PaymentHashPaymentIdZ o);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ in the error state.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_err(struct LDKPaymentSendFailure e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_is_ok(const struct LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ.
+ */
+void CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_free(struct LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone(const struct LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ *NONNULL_PTR orig);
+
+/**
+ * Frees the buffer pointed to by `data` if `datalen` is non-0.
+ */
+void CVec_NetAddressZ_free(struct LDKCVec_NetAddressZ _res);
+
+/**
+ * Creates a new tuple which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKC2Tuple_PaymentHashPaymentSecretZ C2Tuple_PaymentHashPaymentSecretZ_clone(const struct LDKC2Tuple_PaymentHashPaymentSecretZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new C2Tuple_PaymentHashPaymentSecretZ from the contained elements.
+ */
+struct LDKC2Tuple_PaymentHashPaymentSecretZ C2Tuple_PaymentHashPaymentSecretZ_new(struct LDKThirtyTwoBytes a, struct LDKThirtyTwoBytes b);
+
+/**
+ * Frees any resources used by the C2Tuple_PaymentHashPaymentSecretZ.
+ */
+void C2Tuple_PaymentHashPaymentSecretZ_free(struct LDKC2Tuple_PaymentHashPaymentSecretZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ in the success state.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_ok(struct LDKC2Tuple_PaymentHashPaymentSecretZ o);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ in the error state.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_err(void);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok(const struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ.
+ */
+void CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_free(struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone(const struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ *NONNULL_PTR orig);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ in the success state.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_ok(struct LDKC2Tuple_PaymentHashPaymentSecretZ o);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ in the error state.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_err(struct LDKAPIError e);
+
+/**
+ * Checks if the given object is currently in the success state
+ */
+bool CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_is_ok(const struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ *NONNULL_PTR o);
+
+/**
+ * Frees any resources used by the CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ.
+ */
+void CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_free(struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ _res);
+
+/**
+ * Creates a new CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ which has the same data as `orig`
+ * but with all dynamically-allocated buffers duplicated in new buffers.
+ */
+struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone(const struct LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ *NONNULL_PTR orig);