[C#] Update auto-generated C# bindings
[ldk-java] / c_sharp / src / org / ldk / structs / ChannelManager.cs
index 9ec10d69e62a4a79b881df4376ebf6d16ce3d838..b11bebee3fb1014e6736880f93b159e4c8a4fab6 100644 (file)
@@ -19,12 +19,14 @@ namespace org { namespace ldk { namespace structs {
  * called [`funding_transaction_generated`] for outbound channels) being closed.
  * 
  * Note that you can be a bit lazier about writing out `ChannelManager` than you can be with
- * [`ChannelMonitor`]. With [`ChannelMonitor`] you MUST write each monitor update out to disk before
- * returning from [`chain::Watch::watch_channel`]/[`update_channel`], with ChannelManagers, writing updates
- * happens out-of-band (and will prevent any other `ChannelManager` operations from occurring during
- * the serialization process). If the deserialized version is out-of-date compared to the
- * [`ChannelMonitor`] passed by reference to [`read`], those channels will be force-closed based on the
- * `ChannelMonitor` state and no funds will be lost (mod on-chain transaction fees).
+ * [`ChannelMonitor`]. With [`ChannelMonitor`] you MUST durably write each
+ * [`ChannelMonitorUpdate`] before returning from
+ * [`chain::Watch::watch_channel`]/[`update_channel`] or before completing async writes. With
+ * `ChannelManager`s, writing updates happens out-of-band (and will prevent any other
+ * `ChannelManager` operations from occurring during the serialization process). If the
+ * deserialized version is out-of-date compared to the [`ChannelMonitor`] passed by reference to
+ * [`read`], those channels will be force-closed based on the `ChannelMonitor` state and no funds
+ * will be lost (modulo on-chain transaction fees).
  * 
  * Note that the deserializer is only implemented for `(`[`BlockHash`]`, `[`ChannelManager`]`)`, which
  * tells you the last block hash which was connected. You should get the best block tip before using the manager.
@@ -159,8 +161,8 @@ public class ChannelManager : CommonBase {
         * 
         * Note that override_config (or a relevant inner pointer) may be NULL or all-0s to represent None
         */
-       public Result__u832APIErrorZ create_channel(byte[] their_network_key, long channel_value_satoshis, long push_msat, org.ldk.util.UInt128 user_channel_id, org.ldk.structs.UserConfig override_config) {
-               long ret = bindings.ChannelManager_create_channel(this.ptr, InternalUtils.check_arr_len(their_network_key, 33), channel_value_satoshis, push_msat, user_channel_id.getLEBytes(), override_config == null ? 0 : override_config.ptr);
+       public Result_ThirtyTwoBytesAPIErrorZ create_channel(byte[] their_network_key, long channel_value_satoshis, long push_msat, org.ldk.util.UInt128 user_channel_id, org.ldk.structs.UserConfig override_config) {
+               long ret = bindings.ChannelManager_create_channel(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_network_key, 33)), channel_value_satoshis, push_msat, InternalUtils.encodeUint8Array(user_channel_id.getLEBytes()), override_config == null ? 0 : override_config.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(their_network_key);
                GC.KeepAlive(channel_value_satoshis);
@@ -168,7 +170,7 @@ public class ChannelManager : CommonBase {
                GC.KeepAlive(user_channel_id);
                GC.KeepAlive(override_config);
                if (ret >= 0 && ret <= 4096) { return null; }
-               Result__u832APIErrorZ ret_hu_conv = Result__u832APIErrorZ.constr_from_ptr(ret);
+               Result_ThirtyTwoBytesAPIErrorZ ret_hu_conv = Result_ThirtyTwoBytesAPIErrorZ.constr_from_ptr(ret);
                if (this != null) { this.ptrs_to.AddLast(override_config); };
                return ret_hu_conv;
        }
@@ -178,16 +180,18 @@ public class ChannelManager : CommonBase {
         * more information.
         */
        public ChannelDetails[] list_channels() {
-               long[] ret = bindings.ChannelManager_list_channels(this.ptr);
+               long ret = bindings.ChannelManager_list_channels(this.ptr);
                GC.KeepAlive(this);
-               int ret_conv_16_len = ret.Length;
+               if (ret >= 0 && ret <= 4096) { return null; }
+               int ret_conv_16_len = InternalUtils.getArrayLength(ret);
                ChannelDetails[] ret_conv_16_arr = new ChannelDetails[ret_conv_16_len];
                for (int q = 0; q < ret_conv_16_len; q++) {
-                       long ret_conv_16 = ret[q];
+                       long ret_conv_16 = InternalUtils.getU64ArrayElem(ret, q);
                        org.ldk.structs.ChannelDetails ret_conv_16_hu_conv = null; if (ret_conv_16 < 0 || ret_conv_16 > 4096) { ret_conv_16_hu_conv = new org.ldk.structs.ChannelDetails(null, ret_conv_16); }
                        if (ret_conv_16_hu_conv != null) { ret_conv_16_hu_conv.ptrs_to.AddLast(this); };
                        ret_conv_16_arr[q] = ret_conv_16_hu_conv;
                }
+               bindings.free_buffer(ret);
                return ret_conv_16_arr;
        }
 
@@ -200,16 +204,18 @@ public class ChannelManager : CommonBase {
         * are.
         */
        public ChannelDetails[] list_usable_channels() {
-               long[] ret = bindings.ChannelManager_list_usable_channels(this.ptr);
+               long ret = bindings.ChannelManager_list_usable_channels(this.ptr);
                GC.KeepAlive(this);
-               int ret_conv_16_len = ret.Length;
+               if (ret >= 0 && ret <= 4096) { return null; }
+               int ret_conv_16_len = InternalUtils.getArrayLength(ret);
                ChannelDetails[] ret_conv_16_arr = new ChannelDetails[ret_conv_16_len];
                for (int q = 0; q < ret_conv_16_len; q++) {
-                       long ret_conv_16 = ret[q];
+                       long ret_conv_16 = InternalUtils.getU64ArrayElem(ret, q);
                        org.ldk.structs.ChannelDetails ret_conv_16_hu_conv = null; if (ret_conv_16 < 0 || ret_conv_16 > 4096) { ret_conv_16_hu_conv = new org.ldk.structs.ChannelDetails(null, ret_conv_16); }
                        if (ret_conv_16_hu_conv != null) { ret_conv_16_hu_conv.ptrs_to.AddLast(this); };
                        ret_conv_16_arr[q] = ret_conv_16_hu_conv;
                }
+               bindings.free_buffer(ret);
                return ret_conv_16_arr;
        }
 
@@ -217,17 +223,19 @@ public class ChannelManager : CommonBase {
         * Gets the list of channels we have with a given counterparty, in random order.
         */
        public ChannelDetails[] list_channels_with_counterparty(byte[] counterparty_node_id) {
-               long[] ret = bindings.ChannelManager_list_channels_with_counterparty(this.ptr, InternalUtils.check_arr_len(counterparty_node_id, 33));
+               long ret = bindings.ChannelManager_list_channels_with_counterparty(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)));
                GC.KeepAlive(this);
                GC.KeepAlive(counterparty_node_id);
-               int ret_conv_16_len = ret.Length;
+               if (ret >= 0 && ret <= 4096) { return null; }
+               int ret_conv_16_len = InternalUtils.getArrayLength(ret);
                ChannelDetails[] ret_conv_16_arr = new ChannelDetails[ret_conv_16_len];
                for (int q = 0; q < ret_conv_16_len; q++) {
-                       long ret_conv_16 = ret[q];
+                       long ret_conv_16 = InternalUtils.getU64ArrayElem(ret, q);
                        org.ldk.structs.ChannelDetails ret_conv_16_hu_conv = null; if (ret_conv_16 < 0 || ret_conv_16 > 4096) { ret_conv_16_hu_conv = new org.ldk.structs.ChannelDetails(null, ret_conv_16); }
                        if (ret_conv_16_hu_conv != null) { ret_conv_16_hu_conv.ptrs_to.AddLast(this); };
                        ret_conv_16_arr[q] = ret_conv_16_hu_conv;
                }
+               bindings.free_buffer(ret);
                return ret_conv_16_arr;
        }
 
@@ -242,16 +250,18 @@ public class ChannelManager : CommonBase {
         * [`Event::PaymentSent`]: events::Event::PaymentSent
         */
        public RecentPaymentDetails[] list_recent_payments() {
-               long[] ret = bindings.ChannelManager_list_recent_payments(this.ptr);
+               long ret = bindings.ChannelManager_list_recent_payments(this.ptr);
                GC.KeepAlive(this);
-               int ret_conv_22_len = ret.Length;
+               if (ret >= 0 && ret <= 4096) { return null; }
+               int ret_conv_22_len = InternalUtils.getArrayLength(ret);
                RecentPaymentDetails[] ret_conv_22_arr = new RecentPaymentDetails[ret_conv_22_len];
                for (int w = 0; w < ret_conv_22_len; w++) {
-                       long ret_conv_22 = ret[w];
+                       long ret_conv_22 = InternalUtils.getU64ArrayElem(ret, w);
                        org.ldk.structs.RecentPaymentDetails ret_conv_22_hu_conv = org.ldk.structs.RecentPaymentDetails.constr_from_ptr(ret_conv_22);
                        if (ret_conv_22_hu_conv != null) { ret_conv_22_hu_conv.ptrs_to.AddLast(this); };
                        ret_conv_22_arr[w] = ret_conv_22_hu_conv;
                }
+               bindings.free_buffer(ret);
                return ret_conv_22_arr;
        }
 
@@ -260,11 +270,11 @@ public class ChannelManager : CommonBase {
         * will be accepted on the given channel, and after additional timeout/the closing of all
         * pending HTLCs, the channel will be closed on chain.
         * 
-        * If we are the channel initiator, we will pay between our [`Background`] and
-        * [`ChannelConfig::force_close_avoidance_max_fee_satoshis`] plus our [`Normal`] fee
-        * estimate.
+        * If we are the channel initiator, we will pay between our [`ChannelCloseMinimum`] and
+        * [`ChannelConfig::force_close_avoidance_max_fee_satoshis`] plus our [`NonAnchorChannelFee`]
+        * fee estimate.
         * If our counterparty is the channel initiator, we will require a channel closing
-        * transaction feerate of at least our [`Background`] feerate or the feerate which
+        * transaction feerate of at least our [`ChannelCloseMinimum`] feerate or the feerate which
         * would appear on a force-closure transaction, whichever is lower. We will allow our
         * counterparty to pay as much fee as they'd like, however.
         * 
@@ -276,12 +286,12 @@ public class ChannelManager : CommonBase {
         * channel.
         * 
         * [`ChannelConfig::force_close_avoidance_max_fee_satoshis`]: crate::util::config::ChannelConfig::force_close_avoidance_max_fee_satoshis
-        * [`Background`]: crate::chain::chaininterface::ConfirmationTarget::Background
-        * [`Normal`]: crate::chain::chaininterface::ConfirmationTarget::Normal
+        * [`ChannelCloseMinimum`]: crate::chain::chaininterface::ConfirmationTarget::ChannelCloseMinimum
+        * [`NonAnchorChannelFee`]: crate::chain::chaininterface::ConfirmationTarget::NonAnchorChannelFee
         * [`SendShutdown`]: crate::events::MessageSendEvent::SendShutdown
         */
        public Result_NoneAPIErrorZ close_channel(byte[] channel_id, byte[] counterparty_node_id) {
-               long ret = bindings.ChannelManager_close_channel(this.ptr, InternalUtils.check_arr_len(channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33));
+               long ret = bindings.ChannelManager_close_channel(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)));
                GC.KeepAlive(this);
                GC.KeepAlive(channel_id);
                GC.KeepAlive(counterparty_node_id);
@@ -299,8 +309,8 @@ public class ChannelManager : CommonBase {
         * the channel being closed or not:
         * If we are the channel initiator, we will pay at least this feerate on the closing
         * transaction. The upper-bound is set by
-        * [`ChannelConfig::force_close_avoidance_max_fee_satoshis`] plus our [`Normal`] fee
-        * estimate (or `target_feerate_sat_per_1000_weight`, if it is greater).
+        * [`ChannelConfig::force_close_avoidance_max_fee_satoshis`] plus our [`NonAnchorChannelFee`]
+        * fee estimate (or `target_feerate_sat_per_1000_weight`, if it is greater).
         * If our counterparty is the channel initiator, we will refuse to accept a channel closure
         * transaction feerate below `target_feerate_sat_per_1000_weight` (or the feerate which
         * will appear on a force-closure transaction, whichever is lower).
@@ -318,14 +328,13 @@ public class ChannelManager : CommonBase {
         * channel.
         * 
         * [`ChannelConfig::force_close_avoidance_max_fee_satoshis`]: crate::util::config::ChannelConfig::force_close_avoidance_max_fee_satoshis
-        * [`Background`]: crate::chain::chaininterface::ConfirmationTarget::Background
-        * [`Normal`]: crate::chain::chaininterface::ConfirmationTarget::Normal
+        * [`NonAnchorChannelFee`]: crate::chain::chaininterface::ConfirmationTarget::NonAnchorChannelFee
         * [`SendShutdown`]: crate::events::MessageSendEvent::SendShutdown
         * 
         * Note that shutdown_script (or a relevant inner pointer) may be NULL or all-0s to represent None
         */
        public Result_NoneAPIErrorZ close_channel_with_feerate_and_script(byte[] channel_id, byte[] counterparty_node_id, org.ldk.structs.Option_u32Z target_feerate_sats_per_1000_weight, org.ldk.structs.ShutdownScript shutdown_script) {
-               long ret = bindings.ChannelManager_close_channel_with_feerate_and_script(this.ptr, InternalUtils.check_arr_len(channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33), target_feerate_sats_per_1000_weight.ptr, shutdown_script == null ? 0 : shutdown_script.ptr);
+               long ret = bindings.ChannelManager_close_channel_with_feerate_and_script(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)), target_feerate_sats_per_1000_weight.ptr, shutdown_script == null ? 0 : shutdown_script.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(channel_id);
                GC.KeepAlive(counterparty_node_id);
@@ -345,7 +354,7 @@ public class ChannelManager : CommonBase {
         * channel.
         */
        public Result_NoneAPIErrorZ force_close_broadcasting_latest_txn(byte[] channel_id, byte[] counterparty_node_id) {
-               long ret = bindings.ChannelManager_force_close_broadcasting_latest_txn(this.ptr, InternalUtils.check_arr_len(channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33));
+               long ret = bindings.ChannelManager_force_close_broadcasting_latest_txn(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)));
                GC.KeepAlive(this);
                GC.KeepAlive(channel_id);
                GC.KeepAlive(counterparty_node_id);
@@ -363,7 +372,7 @@ public class ChannelManager : CommonBase {
         * [`ChannelMonitor::get_latest_holder_commitment_txn`].
         */
        public Result_NoneAPIErrorZ force_close_without_broadcasting_txn(byte[] channel_id, byte[] counterparty_node_id) {
-               long ret = bindings.ChannelManager_force_close_without_broadcasting_txn(this.ptr, InternalUtils.check_arr_len(channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33));
+               long ret = bindings.ChannelManager_force_close_without_broadcasting_txn(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)));
                GC.KeepAlive(this);
                GC.KeepAlive(channel_id);
                GC.KeepAlive(counterparty_node_id);
@@ -427,9 +436,8 @@ public class ChannelManager : CommonBase {
         * In general, a path may raise:
         * [`APIError::InvalidRoute`] when an invalid route or forwarding parameter (cltv_delta, fee,
         * node public key) is specified.
-        * [`APIError::ChannelUnavailable`] if the next-hop channel is not available for updates
-        * (including due to previous monitor update failure or new permanent monitor update
-        * failure).
+        * [`APIError::ChannelUnavailable`] if the next-hop channel is not available as it has been
+        * closed, doesn't exist, or the peer is currently disconnected.
         * [`APIError::MonitorUpdateInProgress`] if a new monitor update failure prevented sending the
         * relevant updates.
         * 
@@ -445,7 +453,7 @@ public class ChannelManager : CommonBase {
         * [`ChannelMonitorUpdateStatus::InProgress`]: crate::chain::ChannelMonitorUpdateStatus::InProgress
         */
        public Result_NonePaymentSendFailureZ send_payment_with_route(org.ldk.structs.Route route, byte[] payment_hash, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id) {
-               long ret = bindings.ChannelManager_send_payment_with_route(this.ptr, route == null ? 0 : route.ptr, InternalUtils.check_arr_len(payment_hash, 32), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32));
+               long ret = bindings.ChannelManager_send_payment_with_route(this.ptr, route == null ? 0 : route.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_id, 32)));
                GC.KeepAlive(this);
                GC.KeepAlive(route);
                GC.KeepAlive(payment_hash);
@@ -463,7 +471,7 @@ public class ChannelManager : CommonBase {
         * `route_params` and retry failed payment paths based on `retry_strategy`.
         */
        public Result_NoneRetryableSendFailureZ send_payment(byte[] payment_hash, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id, org.ldk.structs.RouteParameters route_params, org.ldk.structs.Retry retry_strategy) {
-               long ret = bindings.ChannelManager_send_payment(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32), route_params == null ? 0 : route_params.ptr, retry_strategy.ptr);
+               long ret = bindings.ChannelManager_send_payment(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_id, 32)), route_params == null ? 0 : route_params.ptr, retry_strategy.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(payment_hash);
                GC.KeepAlive(recipient_onion);
@@ -479,10 +487,12 @@ public class ChannelManager : CommonBase {
        }
 
        /**
-        * Signals that no further retries for the given payment should occur. Useful if you have a
+        * Signals that no further attempts for the given payment should occur. Useful if you have a
         * pending outbound payment with retries remaining, but wish to stop retrying the payment before
         * retries are exhausted.
         * 
+        * # Event Generation
+        * 
         * If no [`Event::PaymentFailed`] event had been generated before, one will be generated as soon
         * as there are no remaining pending HTLCs for this payment.
         * 
@@ -490,14 +500,23 @@ public class ChannelManager : CommonBase {
         * wait until you receive either a [`Event::PaymentFailed`] or [`Event::PaymentSent`] event to
         * determine the ultimate status of a payment.
         * 
-        * If an [`Event::PaymentFailed`] event is generated and we restart without this
-        * [`ChannelManager`] having been persisted, another [`Event::PaymentFailed`] may be generated.
+        * # Requested Invoices
         * 
-        * [`Event::PaymentFailed`]: events::Event::PaymentFailed
-        * [`Event::PaymentSent`]: events::Event::PaymentSent
+        * In the case of paying a [`Bolt12Invoice`] via [`ChannelManager::pay_for_offer`], abandoning
+        * the payment prior to receiving the invoice will result in an [`Event::InvoiceRequestFailed`]
+        * and prevent any attempts at paying it once received. The other events may only be generated
+        * once the invoice has been received.
+        * 
+        * # Restart Behavior
+        * 
+        * If an [`Event::PaymentFailed`] is generated and we restart without first persisting the
+        * [`ChannelManager`], another [`Event::PaymentFailed`] may be generated; likewise for
+        * [`Event::InvoiceRequestFailed`].
+        * 
+        * [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
         */
        public void abandon_payment(byte[] payment_id) {
-               bindings.ChannelManager_abandon_payment(this.ptr, InternalUtils.check_arr_len(payment_id, 32));
+               bindings.ChannelManager_abandon_payment(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_id, 32)));
                GC.KeepAlive(this);
                GC.KeepAlive(payment_id);
        }
@@ -517,15 +536,15 @@ public class ChannelManager : CommonBase {
         * 
         * [`send_payment`]: Self::send_payment
         */
-       public Result_PaymentHashPaymentSendFailureZ send_spontaneous_payment(org.ldk.structs.Route route, org.ldk.structs.Option_PaymentPreimageZ payment_preimage, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id) {
-               long ret = bindings.ChannelManager_send_spontaneous_payment(this.ptr, route == null ? 0 : route.ptr, payment_preimage.ptr, recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32));
+       public Result_ThirtyTwoBytesPaymentSendFailureZ send_spontaneous_payment(org.ldk.structs.Route route, org.ldk.structs.Option_ThirtyTwoBytesZ payment_preimage, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id) {
+               long ret = bindings.ChannelManager_send_spontaneous_payment(this.ptr, route == null ? 0 : route.ptr, payment_preimage.ptr, recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_id, 32)));
                GC.KeepAlive(this);
                GC.KeepAlive(route);
                GC.KeepAlive(payment_preimage);
                GC.KeepAlive(recipient_onion);
                GC.KeepAlive(payment_id);
                if (ret >= 0 && ret <= 4096) { return null; }
-               Result_PaymentHashPaymentSendFailureZ ret_hu_conv = Result_PaymentHashPaymentSendFailureZ.constr_from_ptr(ret);
+               Result_ThirtyTwoBytesPaymentSendFailureZ ret_hu_conv = Result_ThirtyTwoBytesPaymentSendFailureZ.constr_from_ptr(ret);
                if (this != null) { this.ptrs_to.AddLast(route); };
                if (this != null) { this.ptrs_to.AddLast(payment_preimage); };
                if (this != null) { this.ptrs_to.AddLast(recipient_onion); };
@@ -541,8 +560,8 @@ public class ChannelManager : CommonBase {
         * 
         * [`PaymentParameters::for_keysend`]: crate::routing::router::PaymentParameters::for_keysend
         */
-       public Result_PaymentHashRetryableSendFailureZ send_spontaneous_payment_with_retry(org.ldk.structs.Option_PaymentPreimageZ payment_preimage, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id, org.ldk.structs.RouteParameters route_params, org.ldk.structs.Retry retry_strategy) {
-               long ret = bindings.ChannelManager_send_spontaneous_payment_with_retry(this.ptr, payment_preimage.ptr, recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.check_arr_len(payment_id, 32), route_params == null ? 0 : route_params.ptr, retry_strategy.ptr);
+       public Result_ThirtyTwoBytesRetryableSendFailureZ send_spontaneous_payment_with_retry(org.ldk.structs.Option_ThirtyTwoBytesZ payment_preimage, org.ldk.structs.RecipientOnionFields recipient_onion, byte[] payment_id, org.ldk.structs.RouteParameters route_params, org.ldk.structs.Retry retry_strategy) {
+               long ret = bindings.ChannelManager_send_spontaneous_payment_with_retry(this.ptr, payment_preimage.ptr, recipient_onion == null ? 0 : recipient_onion.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_id, 32)), route_params == null ? 0 : route_params.ptr, retry_strategy.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(payment_preimage);
                GC.KeepAlive(recipient_onion);
@@ -550,7 +569,7 @@ public class ChannelManager : CommonBase {
                GC.KeepAlive(route_params);
                GC.KeepAlive(retry_strategy);
                if (ret >= 0 && ret <= 4096) { return null; }
-               Result_PaymentHashRetryableSendFailureZ ret_hu_conv = Result_PaymentHashRetryableSendFailureZ.constr_from_ptr(ret);
+               Result_ThirtyTwoBytesRetryableSendFailureZ ret_hu_conv = Result_ThirtyTwoBytesRetryableSendFailureZ.constr_from_ptr(ret);
                if (this != null) { this.ptrs_to.AddLast(payment_preimage); };
                if (this != null) { this.ptrs_to.AddLast(recipient_onion); };
                if (this != null) { this.ptrs_to.AddLast(route_params); };
@@ -563,16 +582,63 @@ public class ChannelManager : CommonBase {
         * [`PaymentHash`] of probes based on a static secret and a random [`PaymentId`], which allows
         * us to easily discern them from real payments.
         */
-       public Result_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ send_probe(org.ldk.structs.Path path) {
+       public Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZPaymentSendFailureZ send_probe(org.ldk.structs.Path path) {
                long ret = bindings.ChannelManager_send_probe(this.ptr, path == null ? 0 : path.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(path);
                if (ret >= 0 && ret <= 4096) { return null; }
-               Result_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ ret_hu_conv = Result_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ.constr_from_ptr(ret);
+               Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZPaymentSendFailureZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZPaymentSendFailureZ.constr_from_ptr(ret);
                if (this != null) { this.ptrs_to.AddLast(path); };
                return ret_hu_conv;
        }
 
+       /**
+        * Sends payment probes over all paths of a route that would be used to pay the given
+        * amount to the given `node_id`.
+        * 
+        * See [`ChannelManager::send_preflight_probes`] for more information.
+        */
+       public Result_CVec_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZZProbeSendFailureZ send_spontaneous_preflight_probes(byte[] node_id, long amount_msat, int final_cltv_expiry_delta, org.ldk.structs.Option_u64Z liquidity_limit_multiplier) {
+               long ret = bindings.ChannelManager_send_spontaneous_preflight_probes(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(node_id, 33)), amount_msat, final_cltv_expiry_delta, liquidity_limit_multiplier.ptr);
+               GC.KeepAlive(this);
+               GC.KeepAlive(node_id);
+               GC.KeepAlive(amount_msat);
+               GC.KeepAlive(final_cltv_expiry_delta);
+               GC.KeepAlive(liquidity_limit_multiplier);
+               if (ret >= 0 && ret <= 4096) { return null; }
+               Result_CVec_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZZProbeSendFailureZ ret_hu_conv = Result_CVec_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZZProbeSendFailureZ.constr_from_ptr(ret);
+               if (this != null) { this.ptrs_to.AddLast(liquidity_limit_multiplier); };
+               return ret_hu_conv;
+       }
+
+       /**
+        * Sends payment probes over all paths of a route that would be used to pay a route found
+        * according to the given [`RouteParameters`].
+        * 
+        * This may be used to send \"pre-flight\" probes, i.e., to train our scorer before conducting
+        * the actual payment. Note this is only useful if there likely is sufficient time for the
+        * probe to settle before sending out the actual payment, e.g., when waiting for user
+        * confirmation in a wallet UI.
+        * 
+        * Otherwise, there is a chance the probe could take up some liquidity needed to complete the
+        * actual payment. Users should therefore be cautious and might avoid sending probes if
+        * liquidity is scarce and/or they don't expect the probe to return before they send the
+        * payment. To mitigate this issue, channels with available liquidity less than the required
+        * amount times the given `liquidity_limit_multiplier` won't be used to send pre-flight
+        * probes. If `None` is given as `liquidity_limit_multiplier`, it defaults to `3`.
+        */
+       public Result_CVec_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZZProbeSendFailureZ send_preflight_probes(org.ldk.structs.RouteParameters route_params, org.ldk.structs.Option_u64Z liquidity_limit_multiplier) {
+               long ret = bindings.ChannelManager_send_preflight_probes(this.ptr, route_params == null ? 0 : route_params.ptr, liquidity_limit_multiplier.ptr);
+               GC.KeepAlive(this);
+               GC.KeepAlive(route_params);
+               GC.KeepAlive(liquidity_limit_multiplier);
+               if (ret >= 0 && ret <= 4096) { return null; }
+               Result_CVec_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZZProbeSendFailureZ ret_hu_conv = Result_CVec_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZZProbeSendFailureZ.constr_from_ptr(ret);
+               if (this != null) { this.ptrs_to.AddLast(route_params); };
+               if (this != null) { this.ptrs_to.AddLast(liquidity_limit_multiplier); };
+               return ret_hu_conv;
+       }
+
        /**
         * Call this upon creation of a funding transaction for the given channel.
         * 
@@ -606,7 +672,7 @@ public class ChannelManager : CommonBase {
         * [`Event::ChannelClosed`]: crate::events::Event::ChannelClosed
         */
        public Result_NoneAPIErrorZ funding_transaction_generated(byte[] temporary_channel_id, byte[] counterparty_node_id, byte[] funding_transaction) {
-               long ret = bindings.ChannelManager_funding_transaction_generated(this.ptr, InternalUtils.check_arr_len(temporary_channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33), funding_transaction);
+               long ret = bindings.ChannelManager_funding_transaction_generated(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(temporary_channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)), InternalUtils.encodeUint8Array(funding_transaction));
                GC.KeepAlive(this);
                GC.KeepAlive(temporary_channel_id);
                GC.KeepAlive(counterparty_node_id);
@@ -616,6 +682,28 @@ public class ChannelManager : CommonBase {
                return ret_hu_conv;
        }
 
+       /**
+        * Call this upon creation of a batch funding transaction for the given channels.
+        * 
+        * Return values are identical to [`Self::funding_transaction_generated`], respective to
+        * each individual channel and transaction output.
+        * 
+        * Do NOT broadcast the funding transaction yourself. This batch funding transcaction
+        * will only be broadcast when we have safely received and persisted the counterparty's
+        * signature for each channel.
+        * 
+        * If there is an error, all channels in the batch are to be considered closed.
+        */
+       public Result_NoneAPIErrorZ batch_funding_transaction_generated(TwoTuple_ThirtyTwoBytesPublicKeyZ[] temporary_channels, byte[] funding_transaction) {
+               long ret = bindings.ChannelManager_batch_funding_transaction_generated(this.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(temporary_channels, temporary_channels_conv_35 => temporary_channels_conv_35 != null ? temporary_channels_conv_35.ptr : 0)), InternalUtils.encodeUint8Array(funding_transaction));
+               GC.KeepAlive(this);
+               GC.KeepAlive(temporary_channels);
+               GC.KeepAlive(funding_transaction);
+               if (ret >= 0 && ret <= 4096) { return null; }
+               Result_NoneAPIErrorZ ret_hu_conv = Result_NoneAPIErrorZ.constr_from_ptr(ret);
+               return ret_hu_conv;
+       }
+
        /**
         * Atomically applies partial updates to the [`ChannelConfig`] of the given channels.
         * 
@@ -641,7 +729,7 @@ public class ChannelManager : CommonBase {
         * [`APIMisuseError`]: APIError::APIMisuseError
         */
        public Result_NoneAPIErrorZ update_partial_channel_config(byte[] counterparty_node_id, byte[][] channel_ids, org.ldk.structs.ChannelConfigUpdate config_update) {
-               long ret = bindings.ChannelManager_update_partial_channel_config(this.ptr, InternalUtils.check_arr_len(counterparty_node_id, 33), channel_ids != null ? InternalUtils.mapArray(channel_ids, channel_ids_conv_8 => InternalUtils.check_arr_len(channel_ids_conv_8, 32)) : null, config_update == null ? 0 : config_update.ptr);
+               long ret = bindings.ChannelManager_update_partial_channel_config(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(channel_ids, channel_ids_conv_8 => InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(channel_ids_conv_8, 32)))), config_update == null ? 0 : config_update.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(counterparty_node_id);
                GC.KeepAlive(channel_ids);
@@ -677,7 +765,7 @@ public class ChannelManager : CommonBase {
         * [`APIMisuseError`]: APIError::APIMisuseError
         */
        public Result_NoneAPIErrorZ update_channel_config(byte[] counterparty_node_id, byte[][] channel_ids, org.ldk.structs.ChannelConfig config) {
-               long ret = bindings.ChannelManager_update_channel_config(this.ptr, InternalUtils.check_arr_len(counterparty_node_id, 33), channel_ids != null ? InternalUtils.mapArray(channel_ids, channel_ids_conv_8 => InternalUtils.check_arr_len(channel_ids_conv_8, 32)) : null, config == null ? 0 : config.ptr);
+               long ret = bindings.ChannelManager_update_channel_config(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(channel_ids, channel_ids_conv_8 => InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(channel_ids_conv_8, 32)))), config == null ? 0 : config.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(counterparty_node_id);
                GC.KeepAlive(channel_ids);
@@ -714,7 +802,7 @@ public class ChannelManager : CommonBase {
         * [`HTLCIntercepted::expected_outbound_amount_msat`]: events::Event::HTLCIntercepted::expected_outbound_amount_msat
         */
        public Result_NoneAPIErrorZ forward_intercepted_htlc(byte[] intercept_id, byte[] next_hop_channel_id, byte[] next_node_id, long amt_to_forward_msat) {
-               long ret = bindings.ChannelManager_forward_intercepted_htlc(this.ptr, InternalUtils.check_arr_len(intercept_id, 32), InternalUtils.check_arr_len(next_hop_channel_id, 32), InternalUtils.check_arr_len(next_node_id, 33), amt_to_forward_msat);
+               long ret = bindings.ChannelManager_forward_intercepted_htlc(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(intercept_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(next_hop_channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(next_node_id, 33)), amt_to_forward_msat);
                GC.KeepAlive(this);
                GC.KeepAlive(intercept_id);
                GC.KeepAlive(next_hop_channel_id);
@@ -735,7 +823,7 @@ public class ChannelManager : CommonBase {
         * [`HTLCIntercepted`]: events::Event::HTLCIntercepted
         */
        public Result_NoneAPIErrorZ fail_intercepted_htlc(byte[] intercept_id) {
-               long ret = bindings.ChannelManager_fail_intercepted_htlc(this.ptr, InternalUtils.check_arr_len(intercept_id, 32));
+               long ret = bindings.ChannelManager_fail_intercepted_htlc(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(intercept_id, 32)));
                GC.KeepAlive(this);
                GC.KeepAlive(intercept_id);
                if (ret >= 0 && ret <= 4096) { return null; }
@@ -766,6 +854,10 @@ public class ChannelManager : CommonBase {
         * with the current [`ChannelConfig`].
         * Removing peers which have disconnected but and no longer have any channels.
         * Force-closing and removing channels which have not completed establishment in a timely manner.
+        * Forgetting about stale outbound payments, either those that have already been fulfilled
+        * or those awaiting an invoice that hasn't been delivered in the necessary amount of time.
+        * The latter is determined using the system clock in `std` and the highest seen block time
+        * minus two hours in `no-std`.
         * 
         * Note that this may cause reentrancy through [`chain::Watch::update_channel`] calls or feerate
         * estimate fetches.
@@ -794,7 +886,7 @@ public class ChannelManager : CommonBase {
         * startup during which time claims that were in-progress at shutdown may be replayed.
         */
        public void fail_htlc_backwards(byte[] payment_hash) {
-               bindings.ChannelManager_fail_htlc_backwards(this.ptr, InternalUtils.check_arr_len(payment_hash, 32));
+               bindings.ChannelManager_fail_htlc_backwards(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)));
                GC.KeepAlive(this);
                GC.KeepAlive(payment_hash);
        }
@@ -805,11 +897,12 @@ public class ChannelManager : CommonBase {
         * 
         * See [`FailureCode`] for valid failure codes.
         */
-       public void fail_htlc_backwards_with_reason(byte[] payment_hash, FailureCode failure_code) {
-               bindings.ChannelManager_fail_htlc_backwards_with_reason(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), failure_code);
+       public void fail_htlc_backwards_with_reason(byte[] payment_hash, org.ldk.structs.FailureCode failure_code) {
+               bindings.ChannelManager_fail_htlc_backwards_with_reason(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), failure_code.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(payment_hash);
                GC.KeepAlive(failure_code);
+               if (this != null) { this.ptrs_to.AddLast(failure_code); };
        }
 
        /**
@@ -826,15 +919,37 @@ public class ChannelManager : CommonBase {
         * event matches your expectation. If you fail to do so and call this method, you may provide
         * the sender \"proof-of-payment\" when they did not fulfill the full expected payment.
         * 
+        * This function will fail the payment if it has custom TLVs with even type numbers, as we
+        * will assume they are unknown. If you intend to accept even custom TLVs, you should use
+        * [`claim_funds_with_known_custom_tlvs`].
+        * 
         * [`Event::PaymentClaimable`]: crate::events::Event::PaymentClaimable
         * [`Event::PaymentClaimable::claim_deadline`]: crate::events::Event::PaymentClaimable::claim_deadline
         * [`Event::PaymentClaimed`]: crate::events::Event::PaymentClaimed
         * [`process_pending_events`]: EventsProvider::process_pending_events
         * [`create_inbound_payment`]: Self::create_inbound_payment
         * [`create_inbound_payment_for_hash`]: Self::create_inbound_payment_for_hash
+        * [`claim_funds_with_known_custom_tlvs`]: Self::claim_funds_with_known_custom_tlvs
         */
        public void claim_funds(byte[] payment_preimage) {
-               bindings.ChannelManager_claim_funds(this.ptr, InternalUtils.check_arr_len(payment_preimage, 32));
+               bindings.ChannelManager_claim_funds(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_preimage, 32)));
+               GC.KeepAlive(this);
+               GC.KeepAlive(payment_preimage);
+       }
+
+       /**
+        * This is a variant of [`claim_funds`] that allows accepting a payment with custom TLVs with
+        * even type numbers.
+        * 
+        * # Note
+        * 
+        * You MUST check you've understood all even TLVs before using this to
+        * claim, otherwise you may unintentionally agree to some protocol you do not understand.
+        * 
+        * [`claim_funds`]: Self::claim_funds
+        */
+       public void claim_funds_with_known_custom_tlvs(byte[] payment_preimage) {
+               bindings.ChannelManager_claim_funds_with_known_custom_tlvs(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_preimage, 32)));
                GC.KeepAlive(this);
                GC.KeepAlive(payment_preimage);
        }
@@ -843,9 +958,11 @@ public class ChannelManager : CommonBase {
         * Gets the node_id held by this ChannelManager
         */
        public byte[] get_our_node_id() {
-               byte[] ret = bindings.ChannelManager_get_our_node_id(this.ptr);
+               long ret = bindings.ChannelManager_get_our_node_id(this.ptr);
                GC.KeepAlive(this);
-               return ret;
+               if (ret >= 0 && ret <= 4096) { return null; }
+               byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
+               return ret_conv;
        }
 
        /**
@@ -867,7 +984,7 @@ public class ChannelManager : CommonBase {
         * [`Event::ChannelClosed::user_channel_id`]: events::Event::ChannelClosed::user_channel_id
         */
        public Result_NoneAPIErrorZ accept_inbound_channel(byte[] temporary_channel_id, byte[] counterparty_node_id, org.ldk.util.UInt128 user_channel_id) {
-               long ret = bindings.ChannelManager_accept_inbound_channel(this.ptr, InternalUtils.check_arr_len(temporary_channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33), user_channel_id.getLEBytes());
+               long ret = bindings.ChannelManager_accept_inbound_channel(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(temporary_channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)), InternalUtils.encodeUint8Array(user_channel_id.getLEBytes()));
                GC.KeepAlive(this);
                GC.KeepAlive(temporary_channel_id);
                GC.KeepAlive(counterparty_node_id);
@@ -898,7 +1015,7 @@ public class ChannelManager : CommonBase {
         * [`Event::ChannelClosed::user_channel_id`]: events::Event::ChannelClosed::user_channel_id
         */
        public Result_NoneAPIErrorZ accept_inbound_channel_from_trusted_peer_0conf(byte[] temporary_channel_id, byte[] counterparty_node_id, org.ldk.util.UInt128 user_channel_id) {
-               long ret = bindings.ChannelManager_accept_inbound_channel_from_trusted_peer_0conf(this.ptr, InternalUtils.check_arr_len(temporary_channel_id, 32), InternalUtils.check_arr_len(counterparty_node_id, 33), user_channel_id.getLEBytes());
+               long ret = bindings.ChannelManager_accept_inbound_channel_from_trusted_peer_0conf(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(temporary_channel_id, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(counterparty_node_id, 33)), InternalUtils.encodeUint8Array(user_channel_id.getLEBytes()));
                GC.KeepAlive(this);
                GC.KeepAlive(temporary_channel_id);
                GC.KeepAlive(counterparty_node_id);
@@ -908,6 +1025,106 @@ public class ChannelManager : CommonBase {
                return ret_hu_conv;
        }
 
+       /**
+        * Pays for an [`Offer`] using the given parameters by creating an [`InvoiceRequest`] and
+        * enqueuing it to be sent via an onion message. [`ChannelManager`] will pay the actual
+        * [`Bolt12Invoice`] once it is received.
+        * 
+        * Uses [`InvoiceRequestBuilder`] such that the [`InvoiceRequest`] it builds is recognized by
+        * the [`ChannelManager`] when handling a [`Bolt12Invoice`] message in response to the request.
+        * The optional parameters are used in the builder, if `Some`:
+        * - `quantity` for [`InvoiceRequest::quantity`] which must be set if
+        * [`Offer::expects_quantity`] is `true`.
+        * - `amount_msats` if overpaying what is required for the given `quantity` is desired, and
+        * - `payer_note` for [`InvoiceRequest::payer_note`].
+        * 
+        * If `max_total_routing_fee_msat` is not specified, The default from
+        * [`RouteParameters::from_payment_params_and_value`] is applied.
+        * 
+        * # Payment
+        * 
+        * The provided `payment_id` is used to ensure that only one invoice is paid for the request
+        * when received. See [Avoiding Duplicate Payments] for other requirements once the payment has
+        * been sent.
+        * 
+        * To revoke the request, use [`ChannelManager::abandon_payment`] prior to receiving the
+        * invoice. If abandoned, or an invoice isn't received in a reasonable amount of time, the
+        * payment will fail with an [`Event::InvoiceRequestFailed`].
+        * 
+        * # Privacy
+        * 
+        * Uses a one-hop [`BlindedPath`] for the reply path with [`ChannelManager::get_our_node_id`]
+        * as the introduction node and a derived payer id for payer privacy. As such, currently, the
+        * node must be announced. Otherwise, there is no way to find a path to the introduction node
+        * in order to send the [`Bolt12Invoice`].
+        * 
+        * # Limitations
+        * 
+        * Requires a direct connection to an introduction node in [`Offer::paths`] or to
+        * [`Offer::signing_pubkey`], if empty. A similar restriction applies to the responding
+        * [`Bolt12Invoice::payment_paths`].
+        * 
+        * # Errors
+        * 
+        * Errors if a duplicate `payment_id` is provided given the caveats in the aforementioned link
+        * or if the provided parameters are invalid for the offer.
+        * 
+        * [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
+        * [`InvoiceRequest::quantity`]: crate::offers::invoice_request::InvoiceRequest::quantity
+        * [`InvoiceRequest::payer_note`]: crate::offers::invoice_request::InvoiceRequest::payer_note
+        * [`InvoiceRequestBuilder`]: crate::offers::invoice_request::InvoiceRequestBuilder
+        * [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
+        * [`Bolt12Invoice::payment_paths`]: crate::offers::invoice::Bolt12Invoice::payment_paths
+        * [Avoiding Duplicate Payments]: #avoiding-duplicate-payments
+        */
+       public Result_NoneBolt12SemanticErrorZ pay_for_offer(org.ldk.structs.Offer offer, org.ldk.structs.Option_u64Z quantity, org.ldk.structs.Option_u64Z amount_msats, org.ldk.structs.Option_StrZ payer_note, byte[] payment_id, org.ldk.structs.Retry retry_strategy, org.ldk.structs.Option_u64Z max_total_routing_fee_msat) {
+               long ret = bindings.ChannelManager_pay_for_offer(this.ptr, offer == null ? 0 : offer.ptr, quantity.ptr, amount_msats.ptr, payer_note.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_id, 32)), retry_strategy.ptr, max_total_routing_fee_msat.ptr);
+               GC.KeepAlive(this);
+               GC.KeepAlive(offer);
+               GC.KeepAlive(quantity);
+               GC.KeepAlive(amount_msats);
+               GC.KeepAlive(payer_note);
+               GC.KeepAlive(payment_id);
+               GC.KeepAlive(retry_strategy);
+               GC.KeepAlive(max_total_routing_fee_msat);
+               if (ret >= 0 && ret <= 4096) { return null; }
+               Result_NoneBolt12SemanticErrorZ ret_hu_conv = Result_NoneBolt12SemanticErrorZ.constr_from_ptr(ret);
+               if (this != null) { this.ptrs_to.AddLast(offer); };
+               if (this != null) { this.ptrs_to.AddLast(quantity); };
+               if (this != null) { this.ptrs_to.AddLast(amount_msats); };
+               if (this != null) { this.ptrs_to.AddLast(payer_note); };
+               if (this != null) { this.ptrs_to.AddLast(retry_strategy); };
+               if (this != null) { this.ptrs_to.AddLast(max_total_routing_fee_msat); };
+               return ret_hu_conv;
+       }
+
+       /**
+        * Creates a [`Bolt12Invoice`] for a [`Refund`] and enqueues it to be sent via an onion
+        * message.
+        * 
+        * The resulting invoice uses a [`PaymentHash`] recognized by the [`ChannelManager`] and a
+        * [`BlindedPath`] containing the [`PaymentSecret`] needed to reconstruct the corresponding
+        * [`PaymentPreimage`].
+        * 
+        * # Limitations
+        * 
+        * Requires a direct connection to an introduction node in [`Refund::paths`] or to
+        * [`Refund::payer_id`], if empty. This request is best effort; an invoice will be sent to each
+        * node meeting the aforementioned criteria, but there's no guarantee that they will be
+        * received and no retries will be made.
+        * 
+        * [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
+        */
+       public Result_NoneBolt12SemanticErrorZ request_refund_payment(org.ldk.structs.Refund refund) {
+               long ret = bindings.ChannelManager_request_refund_payment(this.ptr, refund == null ? 0 : refund.ptr);
+               GC.KeepAlive(this);
+               GC.KeepAlive(refund);
+               if (ret >= 0 && ret <= 4096) { return null; }
+               Result_NoneBolt12SemanticErrorZ ret_hu_conv = Result_NoneBolt12SemanticErrorZ.constr_from_ptr(ret);
+               if (this != null) { this.ptrs_to.AddLast(refund); };
+               return ret_hu_conv;
+       }
+
        /**
         * Gets a payment secret and payment hash for use in an invoice given to a third party wishing
         * to pay us.
@@ -942,14 +1159,14 @@ public class ChannelManager : CommonBase {
         * [`PaymentPurpose::InvoicePayment::payment_preimage`]: events::PaymentPurpose::InvoicePayment::payment_preimage
         * [`create_inbound_payment_for_hash`]: Self::create_inbound_payment_for_hash
         */
-       public Result_C2Tuple_PaymentHashPaymentSecretZNoneZ create_inbound_payment(org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
+       public Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ create_inbound_payment(org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
                long ret = bindings.ChannelManager_create_inbound_payment(this.ptr, min_value_msat.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(min_value_msat);
                GC.KeepAlive(invoice_expiry_delta_secs);
                GC.KeepAlive(min_final_cltv_expiry_delta);
                if (ret >= 0 && ret <= 4096) { return null; }
-               Result_C2Tuple_PaymentHashPaymentSecretZNoneZ ret_hu_conv = Result_C2Tuple_PaymentHashPaymentSecretZNoneZ.constr_from_ptr(ret);
+               Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ.constr_from_ptr(ret);
                if (this != null) { this.ptrs_to.AddLast(min_value_msat); };
                if (this != null) { this.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
                return ret_hu_conv;
@@ -1003,15 +1220,15 @@ public class ChannelManager : CommonBase {
         * [`create_inbound_payment`]: Self::create_inbound_payment
         * [`PaymentClaimable`]: events::Event::PaymentClaimable
         */
-       public Result_PaymentSecretNoneZ create_inbound_payment_for_hash(byte[] payment_hash, org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry) {
-               long ret = bindings.ChannelManager_create_inbound_payment_for_hash(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), min_value_msat.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry.ptr);
+       public Result_ThirtyTwoBytesNoneZ create_inbound_payment_for_hash(byte[] payment_hash, org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry) {
+               long ret = bindings.ChannelManager_create_inbound_payment_for_hash(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), min_value_msat.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry.ptr);
                GC.KeepAlive(this);
                GC.KeepAlive(payment_hash);
                GC.KeepAlive(min_value_msat);
                GC.KeepAlive(invoice_expiry_delta_secs);
                GC.KeepAlive(min_final_cltv_expiry);
                if (ret >= 0 && ret <= 4096) { return null; }
-               Result_PaymentSecretNoneZ ret_hu_conv = Result_PaymentSecretNoneZ.constr_from_ptr(ret);
+               Result_ThirtyTwoBytesNoneZ ret_hu_conv = Result_ThirtyTwoBytesNoneZ.constr_from_ptr(ret);
                if (this != null) { this.ptrs_to.AddLast(min_value_msat); };
                if (this != null) { this.ptrs_to.AddLast(min_final_cltv_expiry); };
                return ret_hu_conv;
@@ -1023,13 +1240,13 @@ public class ChannelManager : CommonBase {
         * 
         * [`create_inbound_payment`]: Self::create_inbound_payment
         */
-       public Result_PaymentPreimageAPIErrorZ get_payment_preimage(byte[] payment_hash, byte[] payment_secret) {
-               long ret = bindings.ChannelManager_get_payment_preimage(this.ptr, InternalUtils.check_arr_len(payment_hash, 32), InternalUtils.check_arr_len(payment_secret, 32));
+       public Result_ThirtyTwoBytesAPIErrorZ get_payment_preimage(byte[] payment_hash, byte[] payment_secret) {
+               long ret = bindings.ChannelManager_get_payment_preimage(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_secret, 32)));
                GC.KeepAlive(this);
                GC.KeepAlive(payment_hash);
                GC.KeepAlive(payment_secret);
                if (ret >= 0 && ret <= 4096) { return null; }
-               Result_PaymentPreimageAPIErrorZ ret_hu_conv = Result_PaymentPreimageAPIErrorZ.constr_from_ptr(ret);
+               Result_ThirtyTwoBytesAPIErrorZ ret_hu_conv = Result_ThirtyTwoBytesAPIErrorZ.constr_from_ptr(ret);
                return ret_hu_conv;
        }
 
@@ -1139,13 +1356,17 @@ public class ChannelManager : CommonBase {
        }
 
        /**
-        * Gets a [`Future`] that completes when this [`ChannelManager`] needs to be persisted.
+        * Gets a [`Future`] that completes when this [`ChannelManager`] may need to be persisted or
+        * may have events that need processing.
+        * 
+        * In order to check if this [`ChannelManager`] needs persisting, call
+        * [`Self::get_and_clear_needs_persistence`].
         * 
         * Note that callbacks registered on the [`Future`] MUST NOT call back into this
         * [`ChannelManager`] and should instead register actions to be taken later.
         */
-       public Future get_persistable_update_future() {
-               long ret = bindings.ChannelManager_get_persistable_update_future(this.ptr);
+       public Future get_event_or_persistence_needed_future() {
+               long ret = bindings.ChannelManager_get_event_or_persistence_needed_future(this.ptr);
                GC.KeepAlive(this);
                if (ret >= 0 && ret <= 4096) { return null; }
                org.ldk.structs.Future ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.Future(null, ret); }
@@ -1153,6 +1374,15 @@ public class ChannelManager : CommonBase {
                return ret_hu_conv;
        }
 
+       /**
+        * Returns true if this [`ChannelManager`] needs to be persisted.
+        */
+       public bool get_and_clear_needs_persistence() {
+               bool ret = bindings.ChannelManager_get_and_clear_needs_persistence(this.ptr);
+               GC.KeepAlive(this);
+               return ret;
+       }
+
        /**
         * Gets the latest best block which was connected either via the [`chain::Listen`] or
         * [`chain::Confirm`] interfaces.
@@ -1167,7 +1397,7 @@ public class ChannelManager : CommonBase {
        }
 
        /**
-        * Fetches the set of [`NodeFeatures`] flags which are provided by or required by
+        * Fetches the set of [`NodeFeatures`] flags that are provided by or required by
         * [`ChannelManager`].
         */
        public NodeFeatures node_features() {
@@ -1180,7 +1410,7 @@ public class ChannelManager : CommonBase {
        }
 
        /**
-        * Fetches the set of [`ChannelFeatures`] flags which are provided by or required by
+        * Fetches the set of [`ChannelFeatures`] flags that are provided by or required by
         * [`ChannelManager`].
         */
        public ChannelFeatures channel_features() {
@@ -1193,7 +1423,7 @@ public class ChannelManager : CommonBase {
        }
 
        /**
-        * Fetches the set of [`ChannelTypeFeatures`] flags which are provided by or required by
+        * Fetches the set of [`ChannelTypeFeatures`] flags that are provided by or required by
         * [`ChannelManager`].
         */
        public ChannelTypeFeatures channel_type_features() {
@@ -1206,7 +1436,7 @@ public class ChannelManager : CommonBase {
        }
 
        /**
-        * Fetches the set of [`InitFeatures`] flags which are provided by or required by
+        * Fetches the set of [`InitFeatures`] flags that are provided by or required by
         * [`ChannelManager`].
         */
        public InitFeatures init_features() {
@@ -1231,13 +1461,28 @@ public class ChannelManager : CommonBase {
                return ret_hu_conv;
        }
 
+       /**
+        * Constructs a new OffersMessageHandler which calls the relevant methods on this_arg.
+        * This copies the `inner` pointer in this_arg and thus the returned OffersMessageHandler must be freed before this_arg is
+        */
+       public OffersMessageHandler as_OffersMessageHandler() {
+               long ret = bindings.ChannelManager_as_OffersMessageHandler(this.ptr);
+               GC.KeepAlive(this);
+               if (ret >= 0 && ret <= 4096) { return null; }
+               OffersMessageHandler ret_hu_conv = new OffersMessageHandler(null, ret);
+               if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
+               return ret_hu_conv;
+       }
+
        /**
         * Serialize the ChannelManager object into a byte array which can be read by ChannelManager_read
         */
        public byte[] write() {
-               byte[] ret = bindings.ChannelManager_write(this.ptr);
+               long ret = bindings.ChannelManager_write(this.ptr);
                GC.KeepAlive(this);
-               return ret;
+               if (ret >= 0 && ret <= 4096) { return null; }
+               byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
+               return ret_conv;
        }
 
 }