_ Git - ldk-java/blob - c_sharp/src/org/ldk/structs/UtilMethods.cs

   1 using org.ldk.impl;
   2 using org.ldk.enums;
   3 using org.ldk.util;
   4 using org.ldk.structs;
   5 using System;
   6
   7 namespace org { namespace ldk { namespace util {
   8 public class UtilMethods {
   9         /**
  10          * Gets the 128-bit integer, as 16 little-endian bytes
  11          */
  12         public static byte[] U128_le_bytes(org.ldk.util.UInt128 val) {
  13                 long ret = bindings.U128_le_bytes(InternalUtils.encodeUint8Array(val.getLEBytes()));
  14                 GC.KeepAlive(val);
  15                 if (ret >= 0 && ret <= 4096) { return null; }
  16                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
  17                 return ret_conv;
  18         }
  19
  20         /**
  21          * Constructs a new U128 from 16 little-endian bytes
  22          */
  23         public static UInt128 U128_new(byte[] le_bytes) {
  24                 long ret = bindings.U128_new(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(le_bytes, 16)));
  25                 GC.KeepAlive(le_bytes);
  26                 if (ret >= 0 && ret <= 4096) { return null; }
  27                 org.ldk.util.UInt128 ret_conv = new org.ldk.util.UInt128(ret);
  28                 return ret_conv;
  29         }
  30
  31         /**
  32          * Constructs a new COption_NoneZ containing a
  33          */
  34         public static COption_NoneZ COption_NoneZ_some() {
  35                 COption_NoneZ ret = bindings.COption_NoneZ_some();
  36                 return ret;
  37         }
  38
  39         /**
  40          * Constructs a new COption_NoneZ containing nothing
  41          */
  42         public static COption_NoneZ COption_NoneZ_none() {
  43                 COption_NoneZ ret = bindings.COption_NoneZ_none();
  44                 return ret;
  45         }
  46
  47         /**
  48          * Read a APIError from a byte array, created by APIError_write
  49          */
  50         public static Result_COption_APIErrorZDecodeErrorZ APIError_read(byte[] ser) {
  51                 long ret = bindings.APIError_read(InternalUtils.encodeUint8Array(ser));
  52                 GC.KeepAlive(ser);
  53                 if (ret >= 0 && ret <= 4096) { return null; }
  54                 Result_COption_APIErrorZDecodeErrorZ ret_hu_conv = Result_COption_APIErrorZDecodeErrorZ.constr_from_ptr(ret);
  55                 return ret_hu_conv;
  56         }
  57
  58         /**
  59          * Creates a digital signature of a message given a SecretKey, like the node's secret.
  60          * A receiver knowing the PublicKey (e.g. the node's id) and the message can be sure that the signature was generated by the caller.
  61          * Signatures are EC recoverable, meaning that given the message and the signature the PublicKey of the signer can be extracted.
  62          */
  63         public static Result_StrSecp256k1ErrorZ sign(byte[] msg, byte[] sk) {
  64                 long ret = bindings.sign(InternalUtils.encodeUint8Array(msg), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(sk, 32)));
  65                 GC.KeepAlive(msg);
  66                 GC.KeepAlive(sk);
  67                 if (ret >= 0 && ret <= 4096) { return null; }
  68                 Result_StrSecp256k1ErrorZ ret_hu_conv = Result_StrSecp256k1ErrorZ.constr_from_ptr(ret);
  69                 return ret_hu_conv;
  70         }
  71
  72         /**
  73          * Recovers the PublicKey of the signer of the message given the message and the signature.
  74          */
  75         public static Result_PublicKeySecp256k1ErrorZ recover_pk(byte[] msg, string sig) {
  76                 long ret = bindings.recover_pk(InternalUtils.encodeUint8Array(msg), InternalUtils.encodeString(sig));
  77                 GC.KeepAlive(msg);
  78                 GC.KeepAlive(sig);
  79                 if (ret >= 0 && ret <= 4096) { return null; }
  80                 Result_PublicKeySecp256k1ErrorZ ret_hu_conv = Result_PublicKeySecp256k1ErrorZ.constr_from_ptr(ret);
  81                 return ret_hu_conv;
  82         }
  83
  84         /**
  85          * Verifies a message was signed by a PrivateKey that derives to a given PublicKey, given a message, a signature,
  86          * and the PublicKey.
  87          */
  88         public static bool verify(byte[] msg, string sig, byte[] pk) {
  89                 bool ret = bindings.verify(InternalUtils.encodeUint8Array(msg), InternalUtils.encodeString(sig), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(pk, 33)));
  90                 GC.KeepAlive(msg);
  91                 GC.KeepAlive(sig);
  92                 GC.KeepAlive(pk);
  93                 return ret;
  94         }
  95
  96         /**
  97          * Construct the invoice's HRP and signatureless data into a preimage to be hashed.
  98          */
  99         public static byte[] construct_invoice_preimage(byte[] hrp_bytes, UInt5[] data_without_signature) {
 100                 long ret = bindings.construct_invoice_preimage(InternalUtils.encodeUint8Array(hrp_bytes), InternalUtils.encodeUint8Array(InternalUtils.convUInt5Array(data_without_signature)));
 101                 GC.KeepAlive(hrp_bytes);
 102                 GC.KeepAlive(data_without_signature);
 103                 if (ret >= 0 && ret <= 4096) { return null; }
 104                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 105                 return ret_conv;
 106         }
 107
 108         /**
 109          * Read previously persisted [`ChannelMonitor`]s from the store.
 110          */
 111         public static Result_CVec_C2Tuple_ThirtyTwoBytesChannelMonitorZZIOErrorZ read_channel_monitors(org.ldk.structs.KVStore kv_store, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.SignerProvider signer_provider) {
 112                 long ret = bindings.read_channel_monitors(kv_store.ptr, entropy_source.ptr, signer_provider.ptr);
 113                 GC.KeepAlive(kv_store);
 114                 GC.KeepAlive(entropy_source);
 115                 GC.KeepAlive(signer_provider);
 116                 if (ret >= 0 && ret <= 4096) { return null; }
 117                 Result_CVec_C2Tuple_ThirtyTwoBytesChannelMonitorZZIOErrorZ ret_hu_conv = Result_CVec_C2Tuple_ThirtyTwoBytesChannelMonitorZZIOErrorZ.constr_from_ptr(ret);
 118                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(kv_store); };
 119                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 120                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(signer_provider); };
 121                 return ret_hu_conv;
 122         }
 123
 124         /**
 125          * Read a MonitorEvent from a byte array, created by MonitorEvent_write
 126          */
 127         public static Result_COption_MonitorEventZDecodeErrorZ MonitorEvent_read(byte[] ser) {
 128                 long ret = bindings.MonitorEvent_read(InternalUtils.encodeUint8Array(ser));
 129                 GC.KeepAlive(ser);
 130                 if (ret >= 0 && ret <= 4096) { return null; }
 131                 Result_COption_MonitorEventZDecodeErrorZ ret_hu_conv = Result_COption_MonitorEventZDecodeErrorZ.constr_from_ptr(ret);
 132                 return ret_hu_conv;
 133         }
 134
 135         /**
 136          * Read a C2Tuple_ThirtyTwoBytesChannelMonitorZ from a byte array, created by C2Tuple_ThirtyTwoBytesChannelMonitorZ_write
 137          */
 138         public static Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(byte[] ser, org.ldk.structs.EntropySource arg_a, org.ldk.structs.SignerProvider arg_b) {
 139                 long ret = bindings.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(InternalUtils.encodeUint8Array(ser), arg_a.ptr, arg_b.ptr);
 140                 GC.KeepAlive(ser);
 141                 GC.KeepAlive(arg_a);
 142                 GC.KeepAlive(arg_b);
 143                 if (ret >= 0 && ret <= 4096) { return null; }
 144                 Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.constr_from_ptr(ret);
 145                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_a); };
 146                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_b); };
 147                 return ret_hu_conv;
 148         }
 149
 150         /**
 151          * Peel one layer off an incoming onion, returning a [`PendingHTLCInfo`] that contains information
 152          * about the intended next-hop for the HTLC.
 153          *
 154          * This does all the relevant context-free checks that LDK requires for payment relay or
 155          * acceptance. If the payment is to be received, and the amount matches the expected amount for
 156          * a given invoice, this indicates the [`msgs::UpdateAddHTLC`], once fully committed in the
 157          * channel, will generate an [`Event::PaymentClaimable`].
 158          *
 159          * [`Event::PaymentClaimable`]: crate::events::Event::PaymentClaimable
 160          */
 161         public static Result_PendingHTLCInfoInboundHTLCErrZ peel_payment_onion(org.ldk.structs.UpdateAddHTLC msg, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, int cur_height, bool accept_mpp_keysend, bool allow_skimmed_fees) {
 162                 long ret = bindings.peel_payment_onion(msg == null ? 0 : msg.ptr, node_signer.ptr, logger.ptr, cur_height, accept_mpp_keysend, allow_skimmed_fees);
 163                 GC.KeepAlive(msg);
 164                 GC.KeepAlive(node_signer);
 165                 GC.KeepAlive(logger);
 166                 GC.KeepAlive(cur_height);
 167                 GC.KeepAlive(accept_mpp_keysend);
 168                 GC.KeepAlive(allow_skimmed_fees);
 169                 if (ret >= 0 && ret <= 4096) { return null; }
 170                 Result_PendingHTLCInfoInboundHTLCErrZ ret_hu_conv = Result_PendingHTLCInfoInboundHTLCErrZ.constr_from_ptr(ret);
 171                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 172                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 173                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 174                 return ret_hu_conv;
 175         }
 176
 177         /**
 178          * Fetches the set of [`InitFeatures`] flags that are provided by or required by
 179          * [`ChannelManager`].
 180          */
 181         public static InitFeatures provided_init_features(org.ldk.structs.UserConfig config) {
 182                 long ret = bindings.provided_init_features(config == null ? 0 : config.ptr);
 183                 GC.KeepAlive(config);
 184                 if (ret >= 0 && ret <= 4096) { return null; }
 185                 org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
 186                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(ret_hu_conv); };
 187                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(config); };
 188                 return ret_hu_conv;
 189         }
 190
 191         /**
 192          * Read a C2Tuple_ThirtyTwoBytesChannelManagerZ from a byte array, created by C2Tuple_ThirtyTwoBytesChannelManagerZ_write
 193          */
 194         public static Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ C2Tuple_ThirtyTwoBytesChannelManagerZ_read(byte[] ser, EntropySource arg_entropy_source, NodeSigner arg_node_signer, SignerProvider arg_signer_provider, FeeEstimator arg_fee_estimator, Watch arg_chain_monitor, BroadcasterInterface arg_tx_broadcaster, Router arg_router, Logger arg_logger, UserConfig arg_default_config, ChannelMonitor[] arg_channel_monitors) {
 195                 long ret = bindings.C2Tuple_ThirtyTwoBytesChannelManagerZ_read(InternalUtils.encodeUint8Array(ser), bindings.ChannelManagerReadArgs_new(arg_entropy_source.ptr, arg_node_signer.ptr, arg_signer_provider.ptr, arg_fee_estimator.ptr, arg_chain_monitor.ptr, arg_tx_broadcaster.ptr, arg_router.ptr, arg_logger.ptr, arg_default_config == null ? 0 : arg_default_config.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(arg_channel_monitors, arg_channel_monitors_conv_16 => arg_channel_monitors_conv_16 == null ? 0 : arg_channel_monitors_conv_16.ptr))));
 196                 GC.KeepAlive(ser);
 197                 GC.KeepAlive(arg_entropy_source);
 198                 GC.KeepAlive(arg_node_signer);
 199                 GC.KeepAlive(arg_signer_provider);
 200                 GC.KeepAlive(arg_fee_estimator);
 201                 GC.KeepAlive(arg_chain_monitor);
 202                 GC.KeepAlive(arg_tx_broadcaster);
 203                 GC.KeepAlive(arg_router);
 204                 GC.KeepAlive(arg_logger);
 205                 GC.KeepAlive(arg_default_config);
 206                 GC.KeepAlive(arg_channel_monitors);
 207                 if (ret >= 0 && ret <= 4096) { return null; }
 208                 Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ.constr_from_ptr(ret);
 209                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_entropy_source); };
 210                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_node_signer); };
 211                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_signer_provider); };
 212                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_fee_estimator); };
 213                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_chain_monitor); };
 214                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_tx_broadcaster); };
 215                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_router); };
 216                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_logger); };
 217                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_default_config); };
 218                 foreach (ChannelMonitor arg_channel_monitors_conv_16 in arg_channel_monitors) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_channel_monitors_conv_16); }; };
 219                 return ret_hu_conv;
 220         }
 221
 222         /**
 223          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment`], but no
 224          * `ChannelManager` is required. Useful for generating invoices for [phantom node payments] without
 225          * a `ChannelManager`.
 226          *
 227          * `keys` is generated by calling [`NodeSigner::get_inbound_payment_key_material`] and then
 228          * calling [`ExpandedKey::new`] with its result. It is recommended to cache this value and not
 229          * regenerate it for each new inbound payment.
 230          *
 231          * `current_time` is a Unix timestamp representing the current time.
 232          *
 233          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 234          * on versions of LDK prior to 0.0.114.
 235          *
 236          * [phantom node payments]: crate::sign::PhantomKeysManager
 237          * [`NodeSigner::get_inbound_payment_key_material`]: crate::sign::NodeSigner::get_inbound_payment_key_material
 238          */
 239         public static Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ create(org.ldk.structs.ExpandedKey keys, org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.EntropySource entropy_source, long current_time, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 240                 long ret = bindings.create(keys == null ? 0 : keys.ptr, min_value_msat.ptr, invoice_expiry_delta_secs, entropy_source.ptr, current_time, min_final_cltv_expiry_delta.ptr);
 241                 GC.KeepAlive(keys);
 242                 GC.KeepAlive(min_value_msat);
 243                 GC.KeepAlive(invoice_expiry_delta_secs);
 244                 GC.KeepAlive(entropy_source);
 245                 GC.KeepAlive(current_time);
 246                 GC.KeepAlive(min_final_cltv_expiry_delta);
 247                 if (ret >= 0 && ret <= 4096) { return null; }
 248                 Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ.constr_from_ptr(ret);
 249                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(keys); };
 250                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_value_msat); };
 251                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 252                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 253                 return ret_hu_conv;
 254         }
 255
 256         /**
 257          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash`],
 258          * but no `ChannelManager` is required. Useful for generating invoices for [phantom node payments]
 259          * without a `ChannelManager`.
 260          *
 261          * See [`create`] for information on the `keys` and `current_time` parameters.
 262          *
 263          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 264          * on versions of LDK prior to 0.0.114.
 265          *
 266          * [phantom node payments]: crate::sign::PhantomKeysManager
 267          */
 268         public static Result_ThirtyTwoBytesNoneZ create_from_hash(org.ldk.structs.ExpandedKey keys, org.ldk.structs.Option_u64Z min_value_msat, byte[] payment_hash, int invoice_expiry_delta_secs, long current_time, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 269                 long ret = bindings.create_from_hash(keys == null ? 0 : keys.ptr, min_value_msat.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), invoice_expiry_delta_secs, current_time, min_final_cltv_expiry_delta.ptr);
 270                 GC.KeepAlive(keys);
 271                 GC.KeepAlive(min_value_msat);
 272                 GC.KeepAlive(payment_hash);
 273                 GC.KeepAlive(invoice_expiry_delta_secs);
 274                 GC.KeepAlive(current_time);
 275                 GC.KeepAlive(min_final_cltv_expiry_delta);
 276                 if (ret >= 0 && ret <= 4096) { return null; }
 277                 Result_ThirtyTwoBytesNoneZ ret_hu_conv = Result_ThirtyTwoBytesNoneZ.constr_from_ptr(ret);
 278                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(keys); };
 279                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_value_msat); };
 280                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 281                 return ret_hu_conv;
 282         }
 283
 284         /**
 285          * Parses an OnionV3 host and port into a [`SocketAddress::OnionV3`].
 286          *
 287          * The host part must end with \".onion\".
 288          */
 289         public static Result_SocketAddressSocketAddressParseErrorZ parse_onion_address(string host, short port) {
 290                 long ret = bindings.parse_onion_address(InternalUtils.encodeString(host), port);
 291                 GC.KeepAlive(host);
 292                 GC.KeepAlive(port);
 293                 if (ret >= 0 && ret <= 4096) { return null; }
 294                 Result_SocketAddressSocketAddressParseErrorZ ret_hu_conv = Result_SocketAddressSocketAddressParseErrorZ.constr_from_ptr(ret);
 295                 return ret_hu_conv;
 296         }
 297
 298         /**
 299          * Gets the weight for an HTLC-Success transaction.
 300          */
 301         public static long htlc_success_tx_weight(org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 302                 long ret = bindings.htlc_success_tx_weight(channel_type_features == null ? 0 : channel_type_features.ptr);
 303                 GC.KeepAlive(channel_type_features);
 304                 return ret;
 305         }
 306
 307         /**
 308          * Gets the weight for an HTLC-Timeout transaction.
 309          */
 310         public static long htlc_timeout_tx_weight(org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 311                 long ret = bindings.htlc_timeout_tx_weight(channel_type_features == null ? 0 : channel_type_features.ptr);
 312                 GC.KeepAlive(channel_type_features);
 313                 return ret;
 314         }
 315
 316         /**
 317          * Check if a given input witness attempts to claim a HTLC.
 318          */
 319         public static Option_HTLCClaimZ HTLCClaim_from_witness(byte[] witness) {
 320                 long ret = bindings.HTLCClaim_from_witness(InternalUtils.encodeUint8Array(witness));
 321                 GC.KeepAlive(witness);
 322                 if (ret >= 0 && ret <= 4096) { return null; }
 323                 org.ldk.structs.Option_HTLCClaimZ ret_hu_conv = org.ldk.structs.Option_HTLCClaimZ.constr_from_ptr(ret);
 324                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(ret_hu_conv); };
 325                 return ret_hu_conv;
 326         }
 327
 328         /**
 329          * Build the commitment secret from the seed and the commitment number
 330          */
 331         public static byte[] build_commitment_secret(byte[] commitment_seed, long idx) {
 332                 long ret = bindings.build_commitment_secret(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(commitment_seed, 32)), idx);
 333                 GC.KeepAlive(commitment_seed);
 334                 GC.KeepAlive(idx);
 335                 if (ret >= 0 && ret <= 4096) { return null; }
 336                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 337                 return ret_conv;
 338         }
 339
 340         /**
 341          * Build a closing transaction
 342          */
 343         public static byte[] build_closing_transaction(long to_holder_value_sat, long to_counterparty_value_sat, byte[] to_holder_script, byte[] to_counterparty_script, org.ldk.structs.OutPoint funding_outpoint) {
 344                 long ret = bindings.build_closing_transaction(to_holder_value_sat, to_counterparty_value_sat, InternalUtils.encodeUint8Array(to_holder_script), InternalUtils.encodeUint8Array(to_counterparty_script), funding_outpoint == null ? 0 : funding_outpoint.ptr);
 345                 GC.KeepAlive(to_holder_value_sat);
 346                 GC.KeepAlive(to_counterparty_value_sat);
 347                 GC.KeepAlive(to_holder_script);
 348                 GC.KeepAlive(to_counterparty_script);
 349                 GC.KeepAlive(funding_outpoint);
 350                 if (ret >= 0 && ret <= 4096) { return null; }
 351                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 352                 return ret_conv;
 353         }
 354
 355         /**
 356          * Derives a per-commitment-transaction private key (eg an htlc key or delayed_payment key)
 357          * from the base secret and the per_commitment_point.
 358          */
 359         public static byte[] derive_private_key(byte[] per_commitment_point, byte[] base_secret) {
 360                 long ret = bindings.derive_private_key(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(per_commitment_point, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(base_secret, 32)));
 361                 GC.KeepAlive(per_commitment_point);
 362                 GC.KeepAlive(base_secret);
 363                 if (ret >= 0 && ret <= 4096) { return null; }
 364                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 365                 return ret_conv;
 366         }
 367
 368         /**
 369          * Derives a per-commitment-transaction revocation key from its constituent parts.
 370          *
 371          * Only the cheating participant owns a valid witness to propagate a revoked
 372          * commitment transaction, thus per_commitment_secret always come from cheater
 373          * and revocation_base_secret always come from punisher, which is the broadcaster
 374          * of the transaction spending with this key knowledge.
 375          */
 376         public static byte[] derive_private_revocation_key(byte[] per_commitment_secret, byte[] countersignatory_revocation_base_secret) {
 377                 long ret = bindings.derive_private_revocation_key(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(per_commitment_secret, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(countersignatory_revocation_base_secret, 32)));
 378                 GC.KeepAlive(per_commitment_secret);
 379                 GC.KeepAlive(countersignatory_revocation_base_secret);
 380                 if (ret >= 0 && ret <= 4096) { return null; }
 381                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 382                 return ret_conv;
 383         }
 384
 385         /**
 386          * A script either spendable by the revocation
 387          * key or the broadcaster_delayed_payment_key and satisfying the relative-locktime OP_CSV constrain.
 388          * Encumbering a `to_holder` output on a commitment transaction or 2nd-stage HTLC transactions.
 389          */
 390         public static byte[] get_revokeable_redeemscript(org.ldk.structs.RevocationKey revocation_key, short contest_delay, org.ldk.structs.DelayedPaymentKey broadcaster_delayed_payment_key) {
 391                 long ret = bindings.get_revokeable_redeemscript(revocation_key == null ? 0 : revocation_key.ptr, contest_delay, broadcaster_delayed_payment_key == null ? 0 : broadcaster_delayed_payment_key.ptr);
 392                 GC.KeepAlive(revocation_key);
 393                 GC.KeepAlive(contest_delay);
 394                 GC.KeepAlive(broadcaster_delayed_payment_key);
 395                 if (ret >= 0 && ret <= 4096) { return null; }
 396                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 397                 return ret_conv;
 398         }
 399
 400         /**
 401          * Returns the script for the counterparty's output on a holder's commitment transaction based on
 402          * the channel type.
 403          */
 404         public static byte[] get_counterparty_payment_script(org.ldk.structs.ChannelTypeFeatures channel_type_features, byte[] payment_key) {
 405                 long ret = bindings.get_counterparty_payment_script(channel_type_features == null ? 0 : channel_type_features.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_key, 33)));
 406                 GC.KeepAlive(channel_type_features);
 407                 GC.KeepAlive(payment_key);
 408                 if (ret >= 0 && ret <= 4096) { return null; }
 409                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 410                 return ret_conv;
 411         }
 412
 413         /**
 414          * Gets the witness redeemscript for an HTLC output in a commitment transaction. Note that htlc
 415          * does not need to have its previous_output_index filled.
 416          */
 417         public static byte[] get_htlc_redeemscript(org.ldk.structs.HTLCOutputInCommitment htlc, org.ldk.structs.ChannelTypeFeatures channel_type_features, org.ldk.structs.TxCreationKeys keys) {
 418                 long ret = bindings.get_htlc_redeemscript(htlc == null ? 0 : htlc.ptr, channel_type_features == null ? 0 : channel_type_features.ptr, keys == null ? 0 : keys.ptr);
 419                 GC.KeepAlive(htlc);
 420                 GC.KeepAlive(channel_type_features);
 421                 GC.KeepAlive(keys);
 422                 if (ret >= 0 && ret <= 4096) { return null; }
 423                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 424                 return ret_conv;
 425         }
 426
 427         /**
 428          * Gets the redeemscript for a funding output from the two funding public keys.
 429          * Note that the order of funding public keys does not matter.
 430          */
 431         public static byte[] make_funding_redeemscript(byte[] broadcaster, byte[] countersignatory) {
 432                 long ret = bindings.make_funding_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(broadcaster, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(countersignatory, 33)));
 433                 GC.KeepAlive(broadcaster);
 434                 GC.KeepAlive(countersignatory);
 435                 if (ret >= 0 && ret <= 4096) { return null; }
 436                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 437                 return ret_conv;
 438         }
 439
 440         /**
 441          * Builds an unsigned HTLC-Success or HTLC-Timeout transaction from the given channel and HTLC
 442          * parameters. This is used by [`TrustedCommitmentTransaction::get_htlc_sigs`] to fetch the
 443          * transaction which needs signing, and can be used to construct an HTLC transaction which is
 444          * broadcastable given a counterparty HTLC signature.
 445          *
 446          * Panics if htlc.transaction_output_index.is_none() (as such HTLCs do not appear in the
 447          * commitment transaction).
 448          */
 449         public static byte[] build_htlc_transaction(byte[] commitment_txid, int feerate_per_kw, short contest_delay, org.ldk.structs.HTLCOutputInCommitment htlc, org.ldk.structs.ChannelTypeFeatures channel_type_features, org.ldk.structs.DelayedPaymentKey broadcaster_delayed_payment_key, org.ldk.structs.RevocationKey revocation_key) {
 450                 long ret = bindings.build_htlc_transaction(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(commitment_txid, 32)), feerate_per_kw, contest_delay, htlc == null ? 0 : htlc.ptr, channel_type_features == null ? 0 : channel_type_features.ptr, broadcaster_delayed_payment_key == null ? 0 : broadcaster_delayed_payment_key.ptr, revocation_key == null ? 0 : revocation_key.ptr);
 451                 GC.KeepAlive(commitment_txid);
 452                 GC.KeepAlive(feerate_per_kw);
 453                 GC.KeepAlive(contest_delay);
 454                 GC.KeepAlive(htlc);
 455                 GC.KeepAlive(channel_type_features);
 456                 GC.KeepAlive(broadcaster_delayed_payment_key);
 457                 GC.KeepAlive(revocation_key);
 458                 if (ret >= 0 && ret <= 4096) { return null; }
 459                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 460                 return ret_conv;
 461         }
 462
 463         /**
 464          * Returns the witness required to satisfy and spend a HTLC input.
 465          */
 466         public static byte[] build_htlc_input_witness(byte[] local_sig, byte[] remote_sig, org.ldk.structs.Option_ThirtyTwoBytesZ preimage, byte[] redeem_script, org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 467                 long ret = bindings.build_htlc_input_witness(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(local_sig, 64)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(remote_sig, 64)), preimage.ptr, InternalUtils.encodeUint8Array(redeem_script), channel_type_features == null ? 0 : channel_type_features.ptr);
 468                 GC.KeepAlive(local_sig);
 469                 GC.KeepAlive(remote_sig);
 470                 GC.KeepAlive(preimage);
 471                 GC.KeepAlive(redeem_script);
 472                 GC.KeepAlive(channel_type_features);
 473                 if (ret >= 0 && ret <= 4096) { return null; }
 474                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 475                 return ret_conv;
 476         }
 477
 478         /**
 479          * Gets the witnessScript for the to_remote output when anchors are enabled.
 480          */
 481         public static byte[] get_to_countersignatory_with_anchors_redeemscript(byte[] payment_point) {
 482                 long ret = bindings.get_to_countersignatory_with_anchors_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_point, 33)));
 483                 GC.KeepAlive(payment_point);
 484                 if (ret >= 0 && ret <= 4096) { return null; }
 485                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 486                 return ret_conv;
 487         }
 488
 489         /**
 490          * Gets the witnessScript for an anchor output from the funding public key.
 491          * The witness in the spending input must be:
 492          * <BIP 143 funding_signature>
 493          * After 16 blocks of confirmation, an alternative satisfying witness could be:
 494          * <>
 495          * (empty vector required to satisfy compliance with MINIMALIF-standard rule)
 496          */
 497         public static byte[] get_anchor_redeemscript(byte[] funding_pubkey) {
 498                 long ret = bindings.get_anchor_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(funding_pubkey, 33)));
 499                 GC.KeepAlive(funding_pubkey);
 500                 if (ret >= 0 && ret <= 4096) { return null; }
 501                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 502                 return ret_conv;
 503         }
 504
 505         /**
 506          * Returns the witness required to satisfy and spend an anchor input.
 507          */
 508         public static byte[] build_anchor_input_witness(byte[] funding_key, byte[] funding_sig) {
 509                 long ret = bindings.build_anchor_input_witness(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(funding_key, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(funding_sig, 64)));
 510                 GC.KeepAlive(funding_key);
 511                 GC.KeepAlive(funding_sig);
 512                 if (ret >= 0 && ret <= 4096) { return null; }
 513                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 514                 return ret_conv;
 515         }
 516
 517         /**
 518          * Commitment transaction numbers which appear in the transactions themselves are XOR'd with a
 519          * shared secret first. This prevents on-chain observers from discovering how many commitment
 520          * transactions occurred in a channel before it was closed.
 521          *
 522          * This function gets the shared secret from relevant channel public keys and can be used to
 523          * \"decrypt\" the commitment transaction number given a commitment transaction on-chain.
 524          */
 525         public static long get_commitment_transaction_number_obscure_factor(byte[] broadcaster_payment_basepoint, byte[] countersignatory_payment_basepoint, bool outbound_from_broadcaster) {
 526                 long ret = bindings.get_commitment_transaction_number_obscure_factor(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(broadcaster_payment_basepoint, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(countersignatory_payment_basepoint, 33)), outbound_from_broadcaster);
 527                 GC.KeepAlive(broadcaster_payment_basepoint);
 528                 GC.KeepAlive(countersignatory_payment_basepoint);
 529                 GC.KeepAlive(outbound_from_broadcaster);
 530                 return ret;
 531         }
 532
 533         /**
 534          * Read a NetworkUpdate from a byte array, created by NetworkUpdate_write
 535          */
 536         public static Result_COption_NetworkUpdateZDecodeErrorZ NetworkUpdate_read(byte[] ser) {
 537                 long ret = bindings.NetworkUpdate_read(InternalUtils.encodeUint8Array(ser));
 538                 GC.KeepAlive(ser);
 539                 if (ret >= 0 && ret <= 4096) { return null; }
 540                 Result_COption_NetworkUpdateZDecodeErrorZ ret_hu_conv = Result_COption_NetworkUpdateZDecodeErrorZ.constr_from_ptr(ret);
 541                 return ret_hu_conv;
 542         }
 543
 544         /**
 545          * Verifies the signature of a [`NodeAnnouncement`].
 546          *
 547          * Returns an error if it is invalid.
 548          */
 549         public static Result_NoneLightningErrorZ verify_node_announcement(org.ldk.structs.NodeAnnouncement msg) {
 550                 long ret = bindings.verify_node_announcement(msg == null ? 0 : msg.ptr);
 551                 GC.KeepAlive(msg);
 552                 if (ret >= 0 && ret <= 4096) { return null; }
 553                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 554                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 555                 return ret_hu_conv;
 556         }
 557
 558         /**
 559          * Verifies all signatures included in a [`ChannelAnnouncement`].
 560          *
 561          * Returns an error if one of the signatures is invalid.
 562          */
 563         public static Result_NoneLightningErrorZ verify_channel_announcement(org.ldk.structs.ChannelAnnouncement msg) {
 564                 long ret = bindings.verify_channel_announcement(msg == null ? 0 : msg.ptr);
 565                 GC.KeepAlive(msg);
 566                 if (ret >= 0 && ret <= 4096) { return null; }
 567                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 568                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 569                 return ret_hu_conv;
 570         }
 571
 572         /**
 573          * Finds a route from us (payer) to the given target node (payee).
 574          *
 575          * If the payee provided features in their invoice, they should be provided via the `payee` field
 576          * in the given [`RouteParameters::payment_params`].
 577          * Without this, MPP will only be used if the payee's features are available in the network graph.
 578          *
 579          * Private routing paths between a public node and the target may be included in the `payee` field
 580          * of [`RouteParameters::payment_params`].
 581          *
 582          * If some channels aren't announced, it may be useful to fill in `first_hops` with the results
 583          * from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of these channels
 584          * from `network_graph` will be ignored, and only those in `first_hops` will be used.
 585          *
 586          * The fees on channels from us to the next hop are ignored as they are assumed to all be equal.
 587          * However, the enabled/disabled bit on such channels as well as the `htlc_minimum_msat` /
 588          * `htlc_maximum_msat` *are* checked as they may change based on the receiving node.
 589          *
 590          * # Panics
 591          *
 592          * Panics if first_hops contains channels without `short_channel_id`s;
 593          * [`ChannelManager::list_usable_channels`] will never include such channels.
 594          *
 595          * [`ChannelManager::list_usable_channels`]: crate::ln::channelmanager::ChannelManager::list_usable_channels
 596          * [`Event::PaymentPathFailed`]: crate::events::Event::PaymentPathFailed
 597          * [`NetworkGraph`]: crate::routing::gossip::NetworkGraph
 598          *
 599          * Note that first_hops (or a relevant inner pointer) may be NULL or all-0s to represent None
 600          */
 601         public static Result_RouteLightningErrorZ find_route(byte[] our_node_pubkey, org.ldk.structs.RouteParameters route_params, org.ldk.structs.NetworkGraph network_graph, ChannelDetails[] first_hops, org.ldk.structs.Logger logger, org.ldk.structs.ScoreLookUp scorer, org.ldk.structs.ProbabilisticScoringFeeParameters score_params, byte[] random_seed_bytes) {
 602                 long ret = bindings.find_route(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(our_node_pubkey, 33)), route_params == null ? 0 : route_params.ptr, network_graph == null ? 0 : network_graph.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(first_hops, first_hops_conv_16 => first_hops_conv_16 == null ? 0 : first_hops_conv_16.ptr)), logger.ptr, scorer.ptr, score_params == null ? 0 : score_params.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(random_seed_bytes, 32)));
 603                 GC.KeepAlive(our_node_pubkey);
 604                 GC.KeepAlive(route_params);
 605                 GC.KeepAlive(network_graph);
 606                 GC.KeepAlive(first_hops);
 607                 GC.KeepAlive(logger);
 608                 GC.KeepAlive(scorer);
 609                 GC.KeepAlive(score_params);
 610                 GC.KeepAlive(random_seed_bytes);
 611                 if (ret >= 0 && ret <= 4096) { return null; }
 612                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 613                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(route_params); };
 614                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 615                 if (first_hops != null) { foreach (ChannelDetails first_hops_conv_16 in first_hops) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(first_hops_conv_16); }; } };
 616                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 617                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(scorer); };
 618                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(score_params); };
 619                 return ret_hu_conv;
 620         }
 621
 622         /**
 623          * Construct a route from us (payer) to the target node (payee) via the given hops (which should
 624          * exclude the payer, but include the payee). This may be useful, e.g., for probing the chosen path.
 625          *
 626          * Re-uses logic from `find_route`, so the restrictions described there also apply here.
 627          */
 628         public static Result_RouteLightningErrorZ build_route_from_hops(byte[] our_node_pubkey, byte[][] hops, org.ldk.structs.RouteParameters route_params, org.ldk.structs.NetworkGraph network_graph, org.ldk.structs.Logger logger, byte[] random_seed_bytes) {
 629                 long ret = bindings.build_route_from_hops(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(our_node_pubkey, 33)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(hops, hops_conv_8 => InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(hops_conv_8, 33)))), route_params == null ? 0 : route_params.ptr, network_graph == null ? 0 : network_graph.ptr, logger.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(random_seed_bytes, 32)));
 630                 GC.KeepAlive(our_node_pubkey);
 631                 GC.KeepAlive(hops);
 632                 GC.KeepAlive(route_params);
 633                 GC.KeepAlive(network_graph);
 634                 GC.KeepAlive(logger);
 635                 GC.KeepAlive(random_seed_bytes);
 636                 if (ret >= 0 && ret <= 4096) { return null; }
 637                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 638                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(route_params); };
 639                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 640                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 641                 return ret_hu_conv;
 642         }
 643
 644         /**
 645          * Creates an unsigned [`PartiallySignedTransaction`] which spends the given descriptors to
 646          * the given outputs, plus an output to the given change destination (if sufficient
 647          * change value remains). The PSBT will have a feerate, at least, of the given value.
 648          *
 649          * The `locktime` argument is used to set the transaction's locktime. If `None`, the
 650          * transaction will have a locktime of 0. It it recommended to set this to the current block
 651          * height to avoid fee sniping, unless you have some specific reason to use a different
 652          * locktime.
 653          *
 654          * Returns the PSBT and expected max transaction weight.
 655          *
 656          * Returns `Err(())` if the output value is greater than the input value minus required fee,
 657          * if a descriptor was duplicated, or if an output descriptor `script_pubkey`
 658          * does not match the one we can spend.
 659          *
 660          * We do not enforce that outputs meet the dust limit or that any output scripts are standard.
 661          */
 662         public static Result_C2Tuple_CVec_u8Zu64ZNoneZ SpendableOutputDescriptor_create_spendable_outputs_psbt(SpendableOutputDescriptor[] descriptors, TxOut[] outputs, byte[] change_destination_script, int feerate_sat_per_1000_weight, org.ldk.structs.Option_u32Z locktime) {
 663                 long ret = bindings.SpendableOutputDescriptor_create_spendable_outputs_psbt(InternalUtils.encodeUint64Array(InternalUtils.mapArray(descriptors, descriptors_conv_27 => descriptors_conv_27.ptr)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(outputs, outputs_conv_7 => outputs_conv_7.ptr)), InternalUtils.encodeUint8Array(change_destination_script), feerate_sat_per_1000_weight, locktime.ptr);
 664                 GC.KeepAlive(descriptors);
 665                 GC.KeepAlive(outputs);
 666                 GC.KeepAlive(change_destination_script);
 667                 GC.KeepAlive(feerate_sat_per_1000_weight);
 668                 GC.KeepAlive(locktime);
 669                 if (ret >= 0 && ret <= 4096) { return null; }
 670                 Result_C2Tuple_CVec_u8Zu64ZNoneZ ret_hu_conv = Result_C2Tuple_CVec_u8Zu64ZNoneZ.constr_from_ptr(ret);
 671                 foreach (SpendableOutputDescriptor descriptors_conv_27 in descriptors) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(descriptors_conv_27); }; };
 672                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(locktime); };
 673                 return ret_hu_conv;
 674         }
 675
 676         /**
 677          * Creates an [`OnionMessage`] with the given `contents` for sending to the destination of
 678          * `path`.
 679          *
 680          * Returns the node id of the peer to send the message to, the message itself, and any addresses
 681          * need to connect to the first node.
 682          *
 683          * Note that reply_path (or a relevant inner pointer) may be NULL or all-0s to represent None
 684          */
 685         public static Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ create_onion_message(org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.OnionMessagePath path, org.ldk.structs.OnionMessageContents contents, org.ldk.structs.BlindedPath reply_path) {
 686                 long ret = bindings.create_onion_message(entropy_source.ptr, node_signer.ptr, path == null ? 0 : path.ptr, contents.ptr, reply_path == null ? 0 : reply_path.ptr);
 687                 GC.KeepAlive(entropy_source);
 688                 GC.KeepAlive(node_signer);
 689                 GC.KeepAlive(path);
 690                 GC.KeepAlive(contents);
 691                 GC.KeepAlive(reply_path);
 692                 if (ret >= 0 && ret <= 4096) { return null; }
 693                 Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ ret_hu_conv = Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ.constr_from_ptr(ret);
 694                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 695                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 696                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(path); };
 697                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(contents); };
 698                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(reply_path); };
 699                 return ret_hu_conv;
 700         }
 701
 702         /**
 703          * Decode one layer of an incoming [`OnionMessage`].
 704          *
 705          * Returns either the next layer of the onion for forwarding or the decrypted content for the
 706          * receiver.
 707          */
 708         public static Result_PeeledOnionNoneZ peel_onion_message(org.ldk.structs.OnionMessage msg, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.structs.CustomOnionMessageHandler custom_handler) {
 709                 long ret = bindings.peel_onion_message(msg == null ? 0 : msg.ptr, node_signer.ptr, logger.ptr, custom_handler.ptr);
 710                 GC.KeepAlive(msg);
 711                 GC.KeepAlive(node_signer);
 712                 GC.KeepAlive(logger);
 713                 GC.KeepAlive(custom_handler);
 714                 if (ret >= 0 && ret <= 4096) { return null; }
 715                 Result_PeeledOnionNoneZ ret_hu_conv = Result_PeeledOnionNoneZ.constr_from_ptr(ret);
 716                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 717                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 718                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 719                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(custom_handler); };
 720                 return ret_hu_conv;
 721         }
 722
 723         /**
 724          * Returns whether `tlv_type` corresponds to a TLV record for Offers.
 725          */
 726         public static bool OffersMessage_is_known_type(long tlv_type) {
 727                 bool ret = bindings.OffersMessage_is_known_type(tlv_type);
 728                 GC.KeepAlive(tlv_type);
 729                 return ret;
 730         }
 731
 732         /**
 733          * Create a one-hop blinded path for a payment.
 734          */
 735         public static Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ BlindedPath_one_hop_for_payment(byte[] payee_node_id, org.ldk.structs.ReceiveTlvs payee_tlvs, org.ldk.structs.EntropySource entropy_source) {
 736                 long ret = bindings.BlindedPath_one_hop_for_payment(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payee_node_id, 33)), payee_tlvs == null ? 0 : payee_tlvs.ptr, entropy_source.ptr);
 737                 GC.KeepAlive(payee_node_id);
 738                 GC.KeepAlive(payee_tlvs);
 739                 GC.KeepAlive(entropy_source);
 740                 if (ret >= 0 && ret <= 4096) { return null; }
 741                 Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ ret_hu_conv = Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ.constr_from_ptr(ret);
 742                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payee_tlvs); };
 743                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 744                 return ret_hu_conv;
 745         }
 746
 747         /**
 748          * Create a blinded path for a payment, to be forwarded along `intermediate_nodes`.
 749          *
 750          * Errors if:
 751          * a provided node id is invalid
 752          * [`BlindedPayInfo`] calculation results in an integer overflow
 753          * any unknown features are required in the provided [`ForwardTlvs`]
 754          *
 755          * [`ForwardTlvs`]: crate::blinded_path::payment::ForwardTlvs
 756          */
 757         public static Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ BlindedPath_new_for_payment(ForwardNode[] intermediate_nodes, byte[] payee_node_id, org.ldk.structs.ReceiveTlvs payee_tlvs, long htlc_maximum_msat, org.ldk.structs.EntropySource entropy_source) {
 758                 long ret = bindings.BlindedPath_new_for_payment(InternalUtils.encodeUint64Array(InternalUtils.mapArray(intermediate_nodes, intermediate_nodes_conv_13 => intermediate_nodes_conv_13 == null ? 0 : intermediate_nodes_conv_13.ptr)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payee_node_id, 33)), payee_tlvs == null ? 0 : payee_tlvs.ptr, htlc_maximum_msat, entropy_source.ptr);
 759                 GC.KeepAlive(intermediate_nodes);
 760                 GC.KeepAlive(payee_node_id);
 761                 GC.KeepAlive(payee_tlvs);
 762                 GC.KeepAlive(htlc_maximum_msat);
 763                 GC.KeepAlive(entropy_source);
 764                 if (ret >= 0 && ret <= 4096) { return null; }
 765                 Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ ret_hu_conv = Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ.constr_from_ptr(ret);
 766                 foreach (ForwardNode intermediate_nodes_conv_13 in intermediate_nodes) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(intermediate_nodes_conv_13); }; };
 767                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payee_tlvs); };
 768                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 769                 return ret_hu_conv;
 770         }
 771
 772         /**
 773          * Read a PathFailure from a byte array, created by PathFailure_write
 774          */
 775         public static Result_COption_PathFailureZDecodeErrorZ PathFailure_read(byte[] ser) {
 776                 long ret = bindings.PathFailure_read(InternalUtils.encodeUint8Array(ser));
 777                 GC.KeepAlive(ser);
 778                 if (ret >= 0 && ret <= 4096) { return null; }
 779                 Result_COption_PathFailureZDecodeErrorZ ret_hu_conv = Result_COption_PathFailureZDecodeErrorZ.constr_from_ptr(ret);
 780                 return ret_hu_conv;
 781         }
 782
 783         /**
 784          * Read a ClosureReason from a byte array, created by ClosureReason_write
 785          */
 786         public static Result_COption_ClosureReasonZDecodeErrorZ ClosureReason_read(byte[] ser) {
 787                 long ret = bindings.ClosureReason_read(InternalUtils.encodeUint8Array(ser));
 788                 GC.KeepAlive(ser);
 789                 if (ret >= 0 && ret <= 4096) { return null; }
 790                 Result_COption_ClosureReasonZDecodeErrorZ ret_hu_conv = Result_COption_ClosureReasonZDecodeErrorZ.constr_from_ptr(ret);
 791                 return ret_hu_conv;
 792         }
 793
 794         /**
 795          * Read a HTLCDestination from a byte array, created by HTLCDestination_write
 796          */
 797         public static Result_COption_HTLCDestinationZDecodeErrorZ HTLCDestination_read(byte[] ser) {
 798                 long ret = bindings.HTLCDestination_read(InternalUtils.encodeUint8Array(ser));
 799                 GC.KeepAlive(ser);
 800                 if (ret >= 0 && ret <= 4096) { return null; }
 801                 Result_COption_HTLCDestinationZDecodeErrorZ ret_hu_conv = Result_COption_HTLCDestinationZDecodeErrorZ.constr_from_ptr(ret);
 802                 return ret_hu_conv;
 803         }
 804
 805         /**
 806          * Read a Event from a byte array, created by Event_write
 807          */
 808         public static Result_COption_EventZDecodeErrorZ Event_read(byte[] ser) {
 809                 long ret = bindings.Event_read(InternalUtils.encodeUint8Array(ser));
 810                 GC.KeepAlive(ser);
 811                 if (ret >= 0 && ret <= 4096) { return null; }
 812                 Result_COption_EventZDecodeErrorZ ret_hu_conv = Result_COption_EventZDecodeErrorZ.constr_from_ptr(ret);
 813                 return ret_hu_conv;
 814         }
 815
 816         /**
 817          * Builds the necessary parameters to pay or pre-flight probe the given zero-amount
 818          * [`Bolt11Invoice`] using [`ChannelManager::send_payment`] or
 819          * [`ChannelManager::send_preflight_probes`].
 820          *
 821          * Prior to paying, you must ensure that the [`Bolt11Invoice::payment_hash`] is unique and the
 822          * same [`PaymentHash`] has never been paid before.
 823          *
 824          * Will always succeed unless the invoice has an amount specified, in which case
 825          * [`payment_parameters_from_invoice`] should be used.
 826          *
 827          * [`ChannelManager::send_payment`]: lightning::ln::channelmanager::ChannelManager::send_payment
 828          * [`ChannelManager::send_preflight_probes`]: lightning::ln::channelmanager::ChannelManager::send_preflight_probes
 829          */
 830         public static Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ payment_parameters_from_zero_amount_invoice(org.ldk.structs.Bolt11Invoice invoice, long amount_msat) {
 831                 long ret = bindings.payment_parameters_from_zero_amount_invoice(invoice == null ? 0 : invoice.ptr, amount_msat);
 832                 GC.KeepAlive(invoice);
 833                 GC.KeepAlive(amount_msat);
 834                 if (ret >= 0 && ret <= 4096) { return null; }
 835                 Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ ret_hu_conv = Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ.constr_from_ptr(ret);
 836                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(invoice); };
 837                 return ret_hu_conv;
 838         }
 839
 840         /**
 841          * Builds the necessary parameters to pay or pre-flight probe the given [`Bolt11Invoice`] using
 842          * [`ChannelManager::send_payment`] or [`ChannelManager::send_preflight_probes`].
 843          *
 844          * Prior to paying, you must ensure that the [`Bolt11Invoice::payment_hash`] is unique and the
 845          * same [`PaymentHash`] has never been paid before.
 846          *
 847          * Will always succeed unless the invoice has no amount specified, in which case
 848          * [`payment_parameters_from_zero_amount_invoice`] should be used.
 849          *
 850          * [`ChannelManager::send_payment`]: lightning::ln::channelmanager::ChannelManager::send_payment
 851          * [`ChannelManager::send_preflight_probes`]: lightning::ln::channelmanager::ChannelManager::send_preflight_probes
 852          */
 853         public static Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ payment_parameters_from_invoice(org.ldk.structs.Bolt11Invoice invoice) {
 854                 long ret = bindings.payment_parameters_from_invoice(invoice == null ? 0 : invoice.ptr);
 855                 GC.KeepAlive(invoice);
 856                 if (ret >= 0 && ret <= 4096) { return null; }
 857                 Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ ret_hu_conv = Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ.constr_from_ptr(ret);
 858                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(invoice); };
 859                 return ret_hu_conv;
 860         }
 861
 862         /**
 863          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
 864          * See [`PhantomKeysManager`] for more information on phantom node payments.
 865          *
 866          * `phantom_route_hints` parameter:
 867          * Contains channel info for all nodes participating in the phantom invoice
 868          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
 869          * participating node
 870          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
 871          * updated when a channel becomes disabled or closes
 872          * Note that if too many channels are included in [`PhantomRouteHints::channels`], the invoice
 873          * may be too long for QR code scanning. To fix this, `PhantomRouteHints::channels` may be pared
 874          * down
 875          *
 876          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
 877          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
 878          * If `None` is provided for `payment_hash`, then one will be created.
 879          *
 880          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 881          * in excess of the current time.
 882          *
 883          * `duration_since_epoch` is the current time since epoch in seconds.
 884          *
 885          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
 886          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`] - 3.
 887          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
 888          * confirmations during routing.
 889          *
 890          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
 891          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
 892          * requirement).
 893          *
 894          * [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
 895          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
 896          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
 897          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
 898          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
 899          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
 900          *
 901          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 902          * available and the current time is supplied by the caller.
 903          */
 904         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_phantom_invoice(org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Option_ThirtyTwoBytesZ payment_hash, string description, int invoice_expiry_delta_secs, PhantomRouteHints[] phantom_route_hints, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta, long duration_since_epoch) {
 905                 long ret = bindings.create_phantom_invoice(amt_msat.ptr, payment_hash.ptr, InternalUtils.encodeString(description), invoice_expiry_delta_secs, InternalUtils.encodeUint64Array(InternalUtils.mapArray(phantom_route_hints, phantom_route_hints_conv_19 => phantom_route_hints_conv_19 == null ? 0 : phantom_route_hints_conv_19.ptr)), entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
 906                 GC.KeepAlive(amt_msat);
 907                 GC.KeepAlive(payment_hash);
 908                 GC.KeepAlive(description);
 909                 GC.KeepAlive(invoice_expiry_delta_secs);
 910                 GC.KeepAlive(phantom_route_hints);
 911                 GC.KeepAlive(entropy_source);
 912                 GC.KeepAlive(node_signer);
 913                 GC.KeepAlive(logger);
 914                 GC.KeepAlive(network);
 915                 GC.KeepAlive(min_final_cltv_expiry_delta);
 916                 GC.KeepAlive(duration_since_epoch);
 917                 if (ret >= 0 && ret <= 4096) { return null; }
 918                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 919                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
 920                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payment_hash); };
 921                 foreach (PhantomRouteHints phantom_route_hints_conv_19 in phantom_route_hints) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(phantom_route_hints_conv_19); }; };
 922                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 923                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 924                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 925                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 926                 return ret_hu_conv;
 927         }
 928
 929         /**
 930          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
 931          * See [`PhantomKeysManager`] for more information on phantom node payments.
 932          *
 933          * `phantom_route_hints` parameter:
 934          * Contains channel info for all nodes participating in the phantom invoice
 935          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
 936          * participating node
 937          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
 938          * updated when a channel becomes disabled or closes
 939          * Note that the route hints generated from `phantom_route_hints` will be limited to a maximum
 940          * of 3 hints to ensure that the invoice can be scanned in a QR code. These hints are selected
 941          * in the order that the nodes in `PhantomRouteHints` are specified, selecting one hint per node
 942          * until the maximum is hit. Callers may provide as many `PhantomRouteHints::channels` as
 943          * desired, but note that some nodes will be trimmed if more than 3 nodes are provided.
 944          *
 945          * `description_hash` is a SHA-256 hash of the description text
 946          *
 947          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
 948          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
 949          * If `None` is provided for `payment_hash`, then one will be created.
 950          *
 951          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 952          * in excess of the current time.
 953          *
 954          * `duration_since_epoch` is the current time since epoch in seconds.
 955          *
 956          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
 957          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
 958          * requirement).
 959          *
 960          * [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
 961          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
 962          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
 963          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
 964          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
 965          *
 966          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 967          * available and the current time is supplied by the caller.
 968          */
 969         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_phantom_invoice_with_description_hash(org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Option_ThirtyTwoBytesZ payment_hash, int invoice_expiry_delta_secs, org.ldk.structs.Sha256 description_hash, PhantomRouteHints[] phantom_route_hints, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta, long duration_since_epoch) {
 970                 long ret = bindings.create_phantom_invoice_with_description_hash(amt_msat.ptr, payment_hash.ptr, invoice_expiry_delta_secs, description_hash == null ? 0 : description_hash.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(phantom_route_hints, phantom_route_hints_conv_19 => phantom_route_hints_conv_19 == null ? 0 : phantom_route_hints_conv_19.ptr)), entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
 971                 GC.KeepAlive(amt_msat);
 972                 GC.KeepAlive(payment_hash);
 973                 GC.KeepAlive(invoice_expiry_delta_secs);
 974                 GC.KeepAlive(description_hash);
 975                 GC.KeepAlive(phantom_route_hints);
 976                 GC.KeepAlive(entropy_source);
 977                 GC.KeepAlive(node_signer);
 978                 GC.KeepAlive(logger);
 979                 GC.KeepAlive(network);
 980                 GC.KeepAlive(min_final_cltv_expiry_delta);
 981                 GC.KeepAlive(duration_since_epoch);
 982                 if (ret >= 0 && ret <= 4096) { return null; }
 983                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
 984                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
 985                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payment_hash); };
 986                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
 987                 foreach (PhantomRouteHints phantom_route_hints_conv_19 in phantom_route_hints) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(phantom_route_hints_conv_19); }; };
 988                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 989                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 990                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 991                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 992                 return ret_hu_conv;
 993         }
 994
 995         /**
 996          * Utility to construct an invoice. Generally, unless you want to do something like a custom
 997          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
 998          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
 999          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
1000          * that the payment secret is valid when the invoice is paid.
1001          *
1002          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1003          * in excess of the current time.
1004          *
1005          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1006          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
1007          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1008          * confirmations during routing.
1009          *
1010          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1011          */
1012         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, string description, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1013                 long ret = bindings.create_invoice_from_channelmanager(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, InternalUtils.encodeString(description), invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1014                 GC.KeepAlive(channelmanager);
1015                 GC.KeepAlive(node_signer);
1016                 GC.KeepAlive(logger);
1017                 GC.KeepAlive(network);
1018                 GC.KeepAlive(amt_msat);
1019                 GC.KeepAlive(description);
1020                 GC.KeepAlive(invoice_expiry_delta_secs);
1021                 GC.KeepAlive(min_final_cltv_expiry_delta);
1022                 if (ret >= 0 && ret <= 4096) { return null; }
1023                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1024                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1025                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1026                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1027                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1028                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1029                 return ret_hu_conv;
1030         }
1031
1032         /**
1033          * Utility to construct an invoice. Generally, unless you want to do something like a custom
1034          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
1035          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
1036          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
1037          * that the payment secret is valid when the invoice is paid.
1038          * Use this variant if you want to pass the `description_hash` to the invoice.
1039          *
1040          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1041          * in excess of the current time.
1042          *
1043          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1044          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
1045          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1046          * confirmations during routing.
1047          *
1048          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1049          */
1050         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_with_description_hash(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Sha256 description_hash, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1051                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash == null ? 0 : description_hash.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1052                 GC.KeepAlive(channelmanager);
1053                 GC.KeepAlive(node_signer);
1054                 GC.KeepAlive(logger);
1055                 GC.KeepAlive(network);
1056                 GC.KeepAlive(amt_msat);
1057                 GC.KeepAlive(description_hash);
1058                 GC.KeepAlive(invoice_expiry_delta_secs);
1059                 GC.KeepAlive(min_final_cltv_expiry_delta);
1060                 if (ret >= 0 && ret <= 4096) { return null; }
1061                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1062                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1063                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1064                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1065                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1066                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1067                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1068                 return ret_hu_conv;
1069         }
1070
1071         /**
1072          * See [`create_invoice_from_channelmanager_with_description_hash`]
1073          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1074          * available and the current time is supplied by the caller.
1075          */
1076         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Sha256 description_hash, long duration_since_epoch, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1077                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash == null ? 0 : description_hash.ptr, duration_since_epoch, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1078                 GC.KeepAlive(channelmanager);
1079                 GC.KeepAlive(node_signer);
1080                 GC.KeepAlive(logger);
1081                 GC.KeepAlive(network);
1082                 GC.KeepAlive(amt_msat);
1083                 GC.KeepAlive(description_hash);
1084                 GC.KeepAlive(duration_since_epoch);
1085                 GC.KeepAlive(invoice_expiry_delta_secs);
1086                 GC.KeepAlive(min_final_cltv_expiry_delta);
1087                 if (ret >= 0 && ret <= 4096) { return null; }
1088                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1089                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1090                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1091                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1092                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1093                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1094                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1095                 return ret_hu_conv;
1096         }
1097
1098         /**
1099          * See [`create_invoice_from_channelmanager`]
1100          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1101          * available and the current time is supplied by the caller.
1102          */
1103         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_and_duration_since_epoch(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, string description, long duration_since_epoch, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1104                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, InternalUtils.encodeString(description), duration_since_epoch, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1105                 GC.KeepAlive(channelmanager);
1106                 GC.KeepAlive(node_signer);
1107                 GC.KeepAlive(logger);
1108                 GC.KeepAlive(network);
1109                 GC.KeepAlive(amt_msat);
1110                 GC.KeepAlive(description);
1111                 GC.KeepAlive(duration_since_epoch);
1112                 GC.KeepAlive(invoice_expiry_delta_secs);
1113                 GC.KeepAlive(min_final_cltv_expiry_delta);
1114                 if (ret >= 0 && ret <= 4096) { return null; }
1115                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1116                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1117                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1118                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1119                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1120                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1121                 return ret_hu_conv;
1122         }
1123
1124         /**
1125          * See [`create_invoice_from_channelmanager_and_duration_since_epoch`]
1126          * This version allows for providing a custom [`PaymentHash`] for the invoice.
1127          * This may be useful if you're building an on-chain swap or involving another protocol where
1128          * the payment hash is also involved outside the scope of lightning.
1129          */
1130         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, string description, long duration_since_epoch, int invoice_expiry_delta_secs, byte[] payment_hash, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1131                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(channelmanager == null ? 0 : channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, InternalUtils.encodeString(description), duration_since_epoch, invoice_expiry_delta_secs, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), min_final_cltv_expiry_delta.ptr);
1132                 GC.KeepAlive(channelmanager);
1133                 GC.KeepAlive(node_signer);
1134                 GC.KeepAlive(logger);
1135                 GC.KeepAlive(network);
1136                 GC.KeepAlive(amt_msat);
1137                 GC.KeepAlive(description);
1138                 GC.KeepAlive(duration_since_epoch);
1139                 GC.KeepAlive(invoice_expiry_delta_secs);
1140                 GC.KeepAlive(payment_hash);
1141                 GC.KeepAlive(min_final_cltv_expiry_delta);
1142                 if (ret >= 0 && ret <= 4096) { return null; }
1143                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1144                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1145                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1146                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1147                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1148                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1149                 return ret_hu_conv;
1150         }
1151
1152 } } } }