_ 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          * Extracts the block height (most significant 3-bytes) from the `short_channel_id`
 126          */
 127         public static int block_from_scid(long short_channel_id) {
 128                 int ret = bindings.block_from_scid(short_channel_id);
 129                 GC.KeepAlive(short_channel_id);
 130                 return ret;
 131         }
 132
 133         /**
 134          * Extracts the tx index (bytes [2..4]) from the `short_channel_id`
 135          */
 136         public static int tx_index_from_scid(long short_channel_id) {
 137                 int ret = bindings.tx_index_from_scid(short_channel_id);
 138                 GC.KeepAlive(short_channel_id);
 139                 return ret;
 140         }
 141
 142         /**
 143          * Extracts the vout (bytes [0..2]) from the `short_channel_id`
 144          */
 145         public static short vout_from_scid(long short_channel_id) {
 146                 short ret = bindings.vout_from_scid(short_channel_id);
 147                 GC.KeepAlive(short_channel_id);
 148                 return ret;
 149         }
 150
 151         /**
 152          * Constructs a `short_channel_id` using the components pieces. Results in an error
 153          * if the block height, tx index, or vout index overflow the maximum sizes.
 154          */
 155         public static Result_u64ShortChannelIdErrorZ scid_from_parts(long block, long tx_index, long vout_index) {
 156                 long ret = bindings.scid_from_parts(block, tx_index, vout_index);
 157                 GC.KeepAlive(block);
 158                 GC.KeepAlive(tx_index);
 159                 GC.KeepAlive(vout_index);
 160                 if (ret >= 0 && ret <= 4096) { return null; }
 161                 Result_u64ShortChannelIdErrorZ ret_hu_conv = Result_u64ShortChannelIdErrorZ.constr_from_ptr(ret);
 162                 return ret_hu_conv;
 163         }
 164
 165         /**
 166          * Read a C2Tuple_BestBlockOutputSweeperZ from a byte array, created by C2Tuple_BestBlockOutputSweeperZ_write
 167          */
 168         public static Result_C2Tuple_BestBlockOutputSweeperZDecodeErrorZ C2Tuple_BestBlockOutputSweeperZ_read(byte[] ser, org.ldk.structs.BroadcasterInterface arg_a, org.ldk.structs.FeeEstimator arg_b, org.ldk.structs.Option_FilterZ arg_c, org.ldk.structs.OutputSpender arg_d, org.ldk.structs.ChangeDestinationSource arg_e, org.ldk.structs.KVStore arg_f, org.ldk.structs.Logger arg_g) {
 169                 long ret = bindings.C2Tuple_BestBlockOutputSweeperZ_read(InternalUtils.encodeUint8Array(ser), arg_a.ptr, arg_b.ptr, arg_c.ptr, arg_d.ptr, arg_e.ptr, arg_f.ptr, arg_g.ptr);
 170                 GC.KeepAlive(ser);
 171                 GC.KeepAlive(arg_a);
 172                 GC.KeepAlive(arg_b);
 173                 GC.KeepAlive(arg_c);
 174                 GC.KeepAlive(arg_d);
 175                 GC.KeepAlive(arg_e);
 176                 GC.KeepAlive(arg_f);
 177                 GC.KeepAlive(arg_g);
 178                 if (ret >= 0 && ret <= 4096) { return null; }
 179                 Result_C2Tuple_BestBlockOutputSweeperZDecodeErrorZ ret_hu_conv = Result_C2Tuple_BestBlockOutputSweeperZDecodeErrorZ.constr_from_ptr(ret);
 180                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_a); };
 181                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_b); };
 182                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_c); };
 183                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_d); };
 184                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_e); };
 185                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_f); };
 186                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_g); };
 187                 return ret_hu_conv;
 188         }
 189
 190         /**
 191          * Read a MonitorEvent from a byte array, created by MonitorEvent_write
 192          */
 193         public static Result_COption_MonitorEventZDecodeErrorZ MonitorEvent_read(byte[] ser) {
 194                 long ret = bindings.MonitorEvent_read(InternalUtils.encodeUint8Array(ser));
 195                 GC.KeepAlive(ser);
 196                 if (ret >= 0 && ret <= 4096) { return null; }
 197                 Result_COption_MonitorEventZDecodeErrorZ ret_hu_conv = Result_COption_MonitorEventZDecodeErrorZ.constr_from_ptr(ret);
 198                 return ret_hu_conv;
 199         }
 200
 201         /**
 202          * Read a C2Tuple_ThirtyTwoBytesChannelMonitorZ from a byte array, created by C2Tuple_ThirtyTwoBytesChannelMonitorZ_write
 203          */
 204         public static Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(byte[] ser, org.ldk.structs.EntropySource arg_a, org.ldk.structs.SignerProvider arg_b) {
 205                 long ret = bindings.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(InternalUtils.encodeUint8Array(ser), arg_a.ptr, arg_b.ptr);
 206                 GC.KeepAlive(ser);
 207                 GC.KeepAlive(arg_a);
 208                 GC.KeepAlive(arg_b);
 209                 if (ret >= 0 && ret <= 4096) { return null; }
 210                 Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.constr_from_ptr(ret);
 211                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_a); };
 212                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_b); };
 213                 return ret_hu_conv;
 214         }
 215
 216         /**
 217          * Peel one layer off an incoming onion, returning a [`PendingHTLCInfo`] that contains information
 218          * about the intended next-hop for the HTLC.
 219          *
 220          * This does all the relevant context-free checks that LDK requires for payment relay or
 221          * acceptance. If the payment is to be received, and the amount matches the expected amount for
 222          * a given invoice, this indicates the [`msgs::UpdateAddHTLC`], once fully committed in the
 223          * channel, will generate an [`Event::PaymentClaimable`].
 224          *
 225          * [`Event::PaymentClaimable`]: crate::events::Event::PaymentClaimable
 226          */
 227         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) {
 228                 long ret = bindings.peel_payment_onion(msg.ptr, node_signer.ptr, logger.ptr, cur_height, accept_mpp_keysend, allow_skimmed_fees);
 229                 GC.KeepAlive(msg);
 230                 GC.KeepAlive(node_signer);
 231                 GC.KeepAlive(logger);
 232                 GC.KeepAlive(cur_height);
 233                 GC.KeepAlive(accept_mpp_keysend);
 234                 GC.KeepAlive(allow_skimmed_fees);
 235                 if (ret >= 0 && ret <= 4096) { return null; }
 236                 Result_PendingHTLCInfoInboundHTLCErrZ ret_hu_conv = Result_PendingHTLCInfoInboundHTLCErrZ.constr_from_ptr(ret);
 237                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 238                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 239                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 240                 return ret_hu_conv;
 241         }
 242
 243         /**
 244          * Fetches the set of [`InitFeatures`] flags that are provided by or required by
 245          * [`ChannelManager`].
 246          */
 247         public static InitFeatures provided_init_features(org.ldk.structs.UserConfig config) {
 248                 long ret = bindings.provided_init_features(config.ptr);
 249                 GC.KeepAlive(config);
 250                 if (ret >= 0 && ret <= 4096) { return null; }
 251                 org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
 252                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(ret_hu_conv); };
 253                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(config); };
 254                 return ret_hu_conv;
 255         }
 256
 257         /**
 258          * Read a C2Tuple_ThirtyTwoBytesChannelManagerZ from a byte array, created by C2Tuple_ThirtyTwoBytesChannelManagerZ_write
 259          */
 260         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) {
 261                 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.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(arg_channel_monitors, arg_channel_monitors_conv_16 => arg_channel_monitors_conv_16.ptr))));
 262                 GC.KeepAlive(ser);
 263                 GC.KeepAlive(arg_entropy_source);
 264                 GC.KeepAlive(arg_node_signer);
 265                 GC.KeepAlive(arg_signer_provider);
 266                 GC.KeepAlive(arg_fee_estimator);
 267                 GC.KeepAlive(arg_chain_monitor);
 268                 GC.KeepAlive(arg_tx_broadcaster);
 269                 GC.KeepAlive(arg_router);
 270                 GC.KeepAlive(arg_logger);
 271                 GC.KeepAlive(arg_default_config);
 272                 GC.KeepAlive(arg_channel_monitors);
 273                 if (ret >= 0 && ret <= 4096) { return null; }
 274                 Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ.constr_from_ptr(ret);
 275                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_entropy_source); };
 276                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_node_signer); };
 277                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_signer_provider); };
 278                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_fee_estimator); };
 279                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_chain_monitor); };
 280                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_tx_broadcaster); };
 281                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_router); };
 282                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_logger); };
 283                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_default_config); };
 284                 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); }; };
 285                 return ret_hu_conv;
 286         }
 287
 288         /**
 289          * Adds a tweak to a public key to derive a new public key.
 290          *
 291          * May panic if `tweak` is not the output of a SHA-256 hash.
 292          */
 293         public static byte[] add_public_key_tweak(byte[] base_point, byte[] tweak) {
 294                 long ret = bindings.add_public_key_tweak(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(base_point, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(tweak, 32)));
 295                 GC.KeepAlive(base_point);
 296                 GC.KeepAlive(tweak);
 297                 if (ret >= 0 && ret <= 4096) { return null; }
 298                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 299                 return ret_conv;
 300         }
 301
 302         /**
 303          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment`], but no
 304          * `ChannelManager` is required. Useful for generating invoices for [phantom node payments] without
 305          * a `ChannelManager`.
 306          *
 307          * `keys` is generated by calling [`NodeSigner::get_inbound_payment_key_material`] and then
 308          * calling [`ExpandedKey::new`] with its result. It is recommended to cache this value and not
 309          * regenerate it for each new inbound payment.
 310          *
 311          * `current_time` is a Unix timestamp representing the current time.
 312          *
 313          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 314          * on versions of LDK prior to 0.0.114.
 315          *
 316          * [phantom node payments]: crate::sign::PhantomKeysManager
 317          * [`NodeSigner::get_inbound_payment_key_material`]: crate::sign::NodeSigner::get_inbound_payment_key_material
 318          */
 319         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) {
 320                 long ret = bindings.create(keys.ptr, min_value_msat.ptr, invoice_expiry_delta_secs, entropy_source.ptr, current_time, min_final_cltv_expiry_delta.ptr);
 321                 GC.KeepAlive(keys);
 322                 GC.KeepAlive(min_value_msat);
 323                 GC.KeepAlive(invoice_expiry_delta_secs);
 324                 GC.KeepAlive(entropy_source);
 325                 GC.KeepAlive(current_time);
 326                 GC.KeepAlive(min_final_cltv_expiry_delta);
 327                 if (ret >= 0 && ret <= 4096) { return null; }
 328                 Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ.constr_from_ptr(ret);
 329                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(keys); };
 330                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_value_msat); };
 331                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 332                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 333                 return ret_hu_conv;
 334         }
 335
 336         /**
 337          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash`],
 338          * but no `ChannelManager` is required. Useful for generating invoices for [phantom node payments]
 339          * without a `ChannelManager`.
 340          *
 341          * See [`create`] for information on the `keys` and `current_time` parameters.
 342          *
 343          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 344          * on versions of LDK prior to 0.0.114.
 345          *
 346          * [phantom node payments]: crate::sign::PhantomKeysManager
 347          */
 348         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) {
 349                 long ret = bindings.create_from_hash(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);
 350                 GC.KeepAlive(keys);
 351                 GC.KeepAlive(min_value_msat);
 352                 GC.KeepAlive(payment_hash);
 353                 GC.KeepAlive(invoice_expiry_delta_secs);
 354                 GC.KeepAlive(current_time);
 355                 GC.KeepAlive(min_final_cltv_expiry_delta);
 356                 if (ret >= 0 && ret <= 4096) { return null; }
 357                 Result_ThirtyTwoBytesNoneZ ret_hu_conv = Result_ThirtyTwoBytesNoneZ.constr_from_ptr(ret);
 358                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(keys); };
 359                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_value_msat); };
 360                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 361                 return ret_hu_conv;
 362         }
 363
 364         /**
 365          * Parses an OnionV3 host and port into a [`SocketAddress::OnionV3`].
 366          *
 367          * The host part must end with \".onion\".
 368          */
 369         public static Result_SocketAddressSocketAddressParseErrorZ parse_onion_address(string host, short port) {
 370                 long ret = bindings.parse_onion_address(InternalUtils.encodeString(host), port);
 371                 GC.KeepAlive(host);
 372                 GC.KeepAlive(port);
 373                 if (ret >= 0 && ret <= 4096) { return null; }
 374                 Result_SocketAddressSocketAddressParseErrorZ ret_hu_conv = Result_SocketAddressSocketAddressParseErrorZ.constr_from_ptr(ret);
 375                 return ret_hu_conv;
 376         }
 377
 378         /**
 379          * Gets the weight for an HTLC-Success transaction.
 380          */
 381         public static long htlc_success_tx_weight(org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 382                 long ret = bindings.htlc_success_tx_weight(channel_type_features.ptr);
 383                 GC.KeepAlive(channel_type_features);
 384                 return ret;
 385         }
 386
 387         /**
 388          * Gets the weight for an HTLC-Timeout transaction.
 389          */
 390         public static long htlc_timeout_tx_weight(org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 391                 long ret = bindings.htlc_timeout_tx_weight(channel_type_features.ptr);
 392                 GC.KeepAlive(channel_type_features);
 393                 return ret;
 394         }
 395
 396         /**
 397          * Check if a given input witness attempts to claim a HTLC.
 398          */
 399         public static Option_HTLCClaimZ HTLCClaim_from_witness(byte[] witness) {
 400                 long ret = bindings.HTLCClaim_from_witness(InternalUtils.encodeUint8Array(witness));
 401                 GC.KeepAlive(witness);
 402                 if (ret >= 0 && ret <= 4096) { return null; }
 403                 org.ldk.structs.Option_HTLCClaimZ ret_hu_conv = org.ldk.structs.Option_HTLCClaimZ.constr_from_ptr(ret);
 404                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(ret_hu_conv); };
 405                 return ret_hu_conv;
 406         }
 407
 408         /**
 409          * Build the commitment secret from the seed and the commitment number
 410          */
 411         public static byte[] build_commitment_secret(byte[] commitment_seed, long idx) {
 412                 long ret = bindings.build_commitment_secret(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(commitment_seed, 32)), idx);
 413                 GC.KeepAlive(commitment_seed);
 414                 GC.KeepAlive(idx);
 415                 if (ret >= 0 && ret <= 4096) { return null; }
 416                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 417                 return ret_conv;
 418         }
 419
 420         /**
 421          * Build a closing transaction
 422          */
 423         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) {
 424                 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.ptr);
 425                 GC.KeepAlive(to_holder_value_sat);
 426                 GC.KeepAlive(to_counterparty_value_sat);
 427                 GC.KeepAlive(to_holder_script);
 428                 GC.KeepAlive(to_counterparty_script);
 429                 GC.KeepAlive(funding_outpoint);
 430                 if (ret >= 0 && ret <= 4096) { return null; }
 431                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 432                 return ret_conv;
 433         }
 434
 435         /**
 436          * Derives a per-commitment-transaction private key (eg an htlc key or delayed_payment key)
 437          * from the base secret and the per_commitment_point.
 438          */
 439         public static byte[] derive_private_key(byte[] per_commitment_point, byte[] base_secret) {
 440                 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)));
 441                 GC.KeepAlive(per_commitment_point);
 442                 GC.KeepAlive(base_secret);
 443                 if (ret >= 0 && ret <= 4096) { return null; }
 444                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 445                 return ret_conv;
 446         }
 447
 448         /**
 449          * Derives a per-commitment-transaction revocation key from its constituent parts.
 450          *
 451          * Only the cheating participant owns a valid witness to propagate a revoked
 452          * commitment transaction, thus per_commitment_secret always come from cheater
 453          * and revocation_base_secret always come from punisher, which is the broadcaster
 454          * of the transaction spending with this key knowledge.
 455          */
 456         public static byte[] derive_private_revocation_key(byte[] per_commitment_secret, byte[] countersignatory_revocation_base_secret) {
 457                 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)));
 458                 GC.KeepAlive(per_commitment_secret);
 459                 GC.KeepAlive(countersignatory_revocation_base_secret);
 460                 if (ret >= 0 && ret <= 4096) { return null; }
 461                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 462                 return ret_conv;
 463         }
 464
 465         /**
 466          * A script either spendable by the revocation
 467          * key or the broadcaster_delayed_payment_key and satisfying the relative-locktime OP_CSV constrain.
 468          * Encumbering a `to_holder` output on a commitment transaction or 2nd-stage HTLC transactions.
 469          */
 470         public static byte[] get_revokeable_redeemscript(org.ldk.structs.RevocationKey revocation_key, short contest_delay, org.ldk.structs.DelayedPaymentKey broadcaster_delayed_payment_key) {
 471                 long ret = bindings.get_revokeable_redeemscript(revocation_key.ptr, contest_delay, broadcaster_delayed_payment_key.ptr);
 472                 GC.KeepAlive(revocation_key);
 473                 GC.KeepAlive(contest_delay);
 474                 GC.KeepAlive(broadcaster_delayed_payment_key);
 475                 if (ret >= 0 && ret <= 4096) { return null; }
 476                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 477                 return ret_conv;
 478         }
 479
 480         /**
 481          * Returns the script for the counterparty's output on a holder's commitment transaction based on
 482          * the channel type.
 483          */
 484         public static byte[] get_counterparty_payment_script(org.ldk.structs.ChannelTypeFeatures channel_type_features, byte[] payment_key) {
 485                 long ret = bindings.get_counterparty_payment_script(channel_type_features.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_key, 33)));
 486                 GC.KeepAlive(channel_type_features);
 487                 GC.KeepAlive(payment_key);
 488                 if (ret >= 0 && ret <= 4096) { return null; }
 489                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 490                 return ret_conv;
 491         }
 492
 493         /**
 494          * Gets the witness redeemscript for an HTLC output in a commitment transaction. Note that htlc
 495          * does not need to have its previous_output_index filled.
 496          */
 497         public static byte[] get_htlc_redeemscript(org.ldk.structs.HTLCOutputInCommitment htlc, org.ldk.structs.ChannelTypeFeatures channel_type_features, org.ldk.structs.TxCreationKeys keys) {
 498                 long ret = bindings.get_htlc_redeemscript(htlc.ptr, channel_type_features.ptr, keys.ptr);
 499                 GC.KeepAlive(htlc);
 500                 GC.KeepAlive(channel_type_features);
 501                 GC.KeepAlive(keys);
 502                 if (ret >= 0 && ret <= 4096) { return null; }
 503                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 504                 return ret_conv;
 505         }
 506
 507         /**
 508          * Gets the redeemscript for a funding output from the two funding public keys.
 509          * Note that the order of funding public keys does not matter.
 510          */
 511         public static byte[] make_funding_redeemscript(byte[] broadcaster, byte[] countersignatory) {
 512                 long ret = bindings.make_funding_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(broadcaster, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(countersignatory, 33)));
 513                 GC.KeepAlive(broadcaster);
 514                 GC.KeepAlive(countersignatory);
 515                 if (ret >= 0 && ret <= 4096) { return null; }
 516                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 517                 return ret_conv;
 518         }
 519
 520         /**
 521          * Builds an unsigned HTLC-Success or HTLC-Timeout transaction from the given channel and HTLC
 522          * parameters. This is used by [`TrustedCommitmentTransaction::get_htlc_sigs`] to fetch the
 523          * transaction which needs signing, and can be used to construct an HTLC transaction which is
 524          * broadcastable given a counterparty HTLC signature.
 525          *
 526          * Panics if htlc.transaction_output_index.is_none() (as such HTLCs do not appear in the
 527          * commitment transaction).
 528          */
 529         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) {
 530                 long ret = bindings.build_htlc_transaction(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(commitment_txid, 32)), feerate_per_kw, contest_delay, htlc.ptr, channel_type_features.ptr, broadcaster_delayed_payment_key.ptr, revocation_key.ptr);
 531                 GC.KeepAlive(commitment_txid);
 532                 GC.KeepAlive(feerate_per_kw);
 533                 GC.KeepAlive(contest_delay);
 534                 GC.KeepAlive(htlc);
 535                 GC.KeepAlive(channel_type_features);
 536                 GC.KeepAlive(broadcaster_delayed_payment_key);
 537                 GC.KeepAlive(revocation_key);
 538                 if (ret >= 0 && ret <= 4096) { return null; }
 539                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 540                 return ret_conv;
 541         }
 542
 543         /**
 544          * Returns the witness required to satisfy and spend a HTLC input.
 545          */
 546         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) {
 547                 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.ptr);
 548                 GC.KeepAlive(local_sig);
 549                 GC.KeepAlive(remote_sig);
 550                 GC.KeepAlive(preimage);
 551                 GC.KeepAlive(redeem_script);
 552                 GC.KeepAlive(channel_type_features);
 553                 if (ret >= 0 && ret <= 4096) { return null; }
 554                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 555                 return ret_conv;
 556         }
 557
 558         /**
 559          * Gets the witnessScript for the to_remote output when anchors are enabled.
 560          */
 561         public static byte[] get_to_countersignatory_with_anchors_redeemscript(byte[] payment_point) {
 562                 long ret = bindings.get_to_countersignatory_with_anchors_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_point, 33)));
 563                 GC.KeepAlive(payment_point);
 564                 if (ret >= 0 && ret <= 4096) { return null; }
 565                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 566                 return ret_conv;
 567         }
 568
 569         /**
 570          * Gets the witnessScript for an anchor output from the funding public key.
 571          * The witness in the spending input must be:
 572          * <BIP 143 funding_signature>
 573          * After 16 blocks of confirmation, an alternative satisfying witness could be:
 574          * <>
 575          * (empty vector required to satisfy compliance with MINIMALIF-standard rule)
 576          */
 577         public static byte[] get_anchor_redeemscript(byte[] funding_pubkey) {
 578                 long ret = bindings.get_anchor_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(funding_pubkey, 33)));
 579                 GC.KeepAlive(funding_pubkey);
 580                 if (ret >= 0 && ret <= 4096) { return null; }
 581                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 582                 return ret_conv;
 583         }
 584
 585         /**
 586          * Returns the witness required to satisfy and spend an anchor input.
 587          */
 588         public static byte[] build_anchor_input_witness(byte[] funding_key, byte[] funding_sig) {
 589                 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)));
 590                 GC.KeepAlive(funding_key);
 591                 GC.KeepAlive(funding_sig);
 592                 if (ret >= 0 && ret <= 4096) { return null; }
 593                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 594                 return ret_conv;
 595         }
 596
 597         /**
 598          * Commitment transaction numbers which appear in the transactions themselves are XOR'd with a
 599          * shared secret first. This prevents on-chain observers from discovering how many commitment
 600          * transactions occurred in a channel before it was closed.
 601          *
 602          * This function gets the shared secret from relevant channel public keys and can be used to
 603          * \"decrypt\" the commitment transaction number given a commitment transaction on-chain.
 604          */
 605         public static long get_commitment_transaction_number_obscure_factor(byte[] broadcaster_payment_basepoint, byte[] countersignatory_payment_basepoint, bool outbound_from_broadcaster) {
 606                 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);
 607                 GC.KeepAlive(broadcaster_payment_basepoint);
 608                 GC.KeepAlive(countersignatory_payment_basepoint);
 609                 GC.KeepAlive(outbound_from_broadcaster);
 610                 return ret;
 611         }
 612
 613         /**
 614          * Read a NetworkUpdate from a byte array, created by NetworkUpdate_write
 615          */
 616         public static Result_COption_NetworkUpdateZDecodeErrorZ NetworkUpdate_read(byte[] ser) {
 617                 long ret = bindings.NetworkUpdate_read(InternalUtils.encodeUint8Array(ser));
 618                 GC.KeepAlive(ser);
 619                 if (ret >= 0 && ret <= 4096) { return null; }
 620                 Result_COption_NetworkUpdateZDecodeErrorZ ret_hu_conv = Result_COption_NetworkUpdateZDecodeErrorZ.constr_from_ptr(ret);
 621                 return ret_hu_conv;
 622         }
 623
 624         /**
 625          * Verifies the signature of a [`NodeAnnouncement`].
 626          *
 627          * Returns an error if it is invalid.
 628          */
 629         public static Result_NoneLightningErrorZ verify_node_announcement(org.ldk.structs.NodeAnnouncement msg) {
 630                 long ret = bindings.verify_node_announcement(msg.ptr);
 631                 GC.KeepAlive(msg);
 632                 if (ret >= 0 && ret <= 4096) { return null; }
 633                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 634                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 635                 return ret_hu_conv;
 636         }
 637
 638         /**
 639          * Verifies all signatures included in a [`ChannelAnnouncement`].
 640          *
 641          * Returns an error if one of the signatures is invalid.
 642          */
 643         public static Result_NoneLightningErrorZ verify_channel_announcement(org.ldk.structs.ChannelAnnouncement msg) {
 644                 long ret = bindings.verify_channel_announcement(msg.ptr);
 645                 GC.KeepAlive(msg);
 646                 if (ret >= 0 && ret <= 4096) { return null; }
 647                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 648                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 649                 return ret_hu_conv;
 650         }
 651
 652         /**
 653          * Finds a route from us (payer) to the given target node (payee).
 654          *
 655          * If the payee provided features in their invoice, they should be provided via the `payee` field
 656          * in the given [`RouteParameters::payment_params`].
 657          * Without this, MPP will only be used if the payee's features are available in the network graph.
 658          *
 659          * Private routing paths between a public node and the target may be included in the `payee` field
 660          * of [`RouteParameters::payment_params`].
 661          *
 662          * If some channels aren't announced, it may be useful to fill in `first_hops` with the results
 663          * from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of these channels
 664          * from `network_graph` will be ignored, and only those in `first_hops` will be used.
 665          *
 666          * The fees on channels from us to the next hop are ignored as they are assumed to all be equal.
 667          * However, the enabled/disabled bit on such channels as well as the `htlc_minimum_msat` /
 668          * `htlc_maximum_msat` *are* checked as they may change based on the receiving node.
 669          *
 670          * # Panics
 671          *
 672          * Panics if first_hops contains channels without `short_channel_id`s;
 673          * [`ChannelManager::list_usable_channels`] will never include such channels.
 674          *
 675          * [`ChannelManager::list_usable_channels`]: crate::ln::channelmanager::ChannelManager::list_usable_channels
 676          * [`Event::PaymentPathFailed`]: crate::events::Event::PaymentPathFailed
 677          * [`NetworkGraph`]: crate::routing::gossip::NetworkGraph
 678          *
 679          * Note that first_hops (or a relevant inner pointer) may be NULL or all-0s to represent None
 680          */
 681         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) {
 682                 long ret = bindings.find_route(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(our_node_pubkey, 33)), route_params.ptr, network_graph.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(first_hops, first_hops_conv_16 => first_hops_conv_16.ptr)), logger.ptr, scorer.ptr, score_params.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(random_seed_bytes, 32)));
 683                 GC.KeepAlive(our_node_pubkey);
 684                 GC.KeepAlive(route_params);
 685                 GC.KeepAlive(network_graph);
 686                 GC.KeepAlive(first_hops);
 687                 GC.KeepAlive(logger);
 688                 GC.KeepAlive(scorer);
 689                 GC.KeepAlive(score_params);
 690                 GC.KeepAlive(random_seed_bytes);
 691                 if (ret >= 0 && ret <= 4096) { return null; }
 692                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 693                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(route_params); };
 694                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 695                 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); }; } };
 696                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 697                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(scorer); };
 698                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(score_params); };
 699                 return ret_hu_conv;
 700         }
 701
 702         /**
 703          * Construct a route from us (payer) to the target node (payee) via the given hops (which should
 704          * exclude the payer, but include the payee). This may be useful, e.g., for probing the chosen path.
 705          *
 706          * Re-uses logic from `find_route`, so the restrictions described there also apply here.
 707          */
 708         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) {
 709                 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.ptr, network_graph.ptr, logger.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(random_seed_bytes, 32)));
 710                 GC.KeepAlive(our_node_pubkey);
 711                 GC.KeepAlive(hops);
 712                 GC.KeepAlive(route_params);
 713                 GC.KeepAlive(network_graph);
 714                 GC.KeepAlive(logger);
 715                 GC.KeepAlive(random_seed_bytes);
 716                 if (ret >= 0 && ret <= 4096) { return null; }
 717                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 718                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(route_params); };
 719                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 720                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 721                 return ret_hu_conv;
 722         }
 723
 724         /**
 725          * Creates an unsigned [`PartiallySignedTransaction`] which spends the given descriptors to
 726          * the given outputs, plus an output to the given change destination (if sufficient
 727          * change value remains). The PSBT will have a feerate, at least, of the given value.
 728          *
 729          * The `locktime` argument is used to set the transaction's locktime. If `None`, the
 730          * transaction will have a locktime of 0. It it recommended to set this to the current block
 731          * height to avoid fee sniping, unless you have some specific reason to use a different
 732          * locktime.
 733          *
 734          * Returns the PSBT and expected max transaction weight.
 735          *
 736          * Returns `Err(())` if the output value is greater than the input value minus required fee,
 737          * if a descriptor was duplicated, or if an output descriptor `script_pubkey`
 738          * does not match the one we can spend.
 739          *
 740          * We do not enforce that outputs meet the dust limit or that any output scripts are standard.
 741          */
 742         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) {
 743                 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);
 744                 GC.KeepAlive(descriptors);
 745                 GC.KeepAlive(outputs);
 746                 GC.KeepAlive(change_destination_script);
 747                 GC.KeepAlive(feerate_sat_per_1000_weight);
 748                 GC.KeepAlive(locktime);
 749                 if (ret >= 0 && ret <= 4096) { return null; }
 750                 Result_C2Tuple_CVec_u8Zu64ZNoneZ ret_hu_conv = Result_C2Tuple_CVec_u8Zu64ZNoneZ.constr_from_ptr(ret);
 751                 foreach (SpendableOutputDescriptor descriptors_conv_27 in descriptors) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(descriptors_conv_27); }; };
 752                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(locktime); };
 753                 return ret_hu_conv;
 754         }
 755
 756         /**
 757          * Creates an [`OnionMessage`] with the given `contents` for sending to the destination of
 758          * `path`, first calling [`Destination::resolve`] on `path.destination` with the given
 759          * [`ReadOnlyNetworkGraph`].
 760          *
 761          * Returns the node id of the peer to send the message to, the message itself, and any addresses
 762          * needed to connect to the first node.
 763          *
 764          * Note that reply_path (or a relevant inner pointer) may be NULL or all-0s to represent None
 765          */
 766         public static Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ create_onion_message_resolving_destination(org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.NodeIdLookUp node_id_lookup, org.ldk.structs.ReadOnlyNetworkGraph network_graph, org.ldk.structs.OnionMessagePath path, org.ldk.structs.OnionMessageContents contents, org.ldk.structs.BlindedPath reply_path) {
 767                 long ret = bindings.create_onion_message_resolving_destination(entropy_source.ptr, node_signer.ptr, node_id_lookup.ptr, network_graph.ptr, path.ptr, contents.ptr, reply_path == null ? 0 : reply_path.ptr);
 768                 GC.KeepAlive(entropy_source);
 769                 GC.KeepAlive(node_signer);
 770                 GC.KeepAlive(node_id_lookup);
 771                 GC.KeepAlive(network_graph);
 772                 GC.KeepAlive(path);
 773                 GC.KeepAlive(contents);
 774                 GC.KeepAlive(reply_path);
 775                 if (ret >= 0 && ret <= 4096) { return null; }
 776                 Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ ret_hu_conv = Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ.constr_from_ptr(ret);
 777                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 778                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 779                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_id_lookup); };
 780                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 781                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(path); };
 782                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(contents); };
 783                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(reply_path); };
 784                 return ret_hu_conv;
 785         }
 786
 787         /**
 788          * Creates an [`OnionMessage`] with the given `contents` for sending to the destination of
 789          * `path`.
 790          *
 791          * Returns the node id of the peer to send the message to, the message itself, and any addresses
 792          * needed to connect to the first node.
 793          *
 794          * Returns [`SendError::UnresolvedIntroductionNode`] if:
 795          * - `destination` contains a blinded path with an [`IntroductionNode::DirectedShortChannelId`],
 796          * - unless it can be resolved by [`NodeIdLookUp::next_node_id`].
 797          * Use [`create_onion_message_resolving_destination`] instead to resolve the introduction node
 798          * first with a [`ReadOnlyNetworkGraph`].
 799          *
 800          * Note that reply_path (or a relevant inner pointer) may be NULL or all-0s to represent None
 801          */
 802         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.NodeIdLookUp node_id_lookup, org.ldk.structs.OnionMessagePath path, org.ldk.structs.OnionMessageContents contents, org.ldk.structs.BlindedPath reply_path) {
 803                 long ret = bindings.create_onion_message(entropy_source.ptr, node_signer.ptr, node_id_lookup.ptr, path.ptr, contents.ptr, reply_path == null ? 0 : reply_path.ptr);
 804                 GC.KeepAlive(entropy_source);
 805                 GC.KeepAlive(node_signer);
 806                 GC.KeepAlive(node_id_lookup);
 807                 GC.KeepAlive(path);
 808                 GC.KeepAlive(contents);
 809                 GC.KeepAlive(reply_path);
 810                 if (ret >= 0 && ret <= 4096) { return null; }
 811                 Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ ret_hu_conv = Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ.constr_from_ptr(ret);
 812                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 813                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 814                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_id_lookup); };
 815                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(path); };
 816                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(contents); };
 817                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(reply_path); };
 818                 return ret_hu_conv;
 819         }
 820
 821         /**
 822          * Decode one layer of an incoming [`OnionMessage`].
 823          *
 824          * Returns either the next layer of the onion for forwarding or the decrypted content for the
 825          * receiver.
 826          */
 827         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) {
 828                 long ret = bindings.peel_onion_message(msg.ptr, node_signer.ptr, logger.ptr, custom_handler.ptr);
 829                 GC.KeepAlive(msg);
 830                 GC.KeepAlive(node_signer);
 831                 GC.KeepAlive(logger);
 832                 GC.KeepAlive(custom_handler);
 833                 if (ret >= 0 && ret <= 4096) { return null; }
 834                 Result_PeeledOnionNoneZ ret_hu_conv = Result_PeeledOnionNoneZ.constr_from_ptr(ret);
 835                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 836                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 837                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 838                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(custom_handler); };
 839                 return ret_hu_conv;
 840         }
 841
 842         /**
 843          * Returns whether `tlv_type` corresponds to a TLV record for Offers.
 844          */
 845         public static bool OffersMessage_is_known_type(long tlv_type) {
 846                 bool ret = bindings.OffersMessage_is_known_type(tlv_type);
 847                 GC.KeepAlive(tlv_type);
 848                 return ret;
 849         }
 850
 851         /**
 852          * Create a one-hop blinded path for a payment.
 853          */
 854         public static Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ BlindedPath_one_hop_for_payment(byte[] payee_node_id, org.ldk.structs.ReceiveTlvs payee_tlvs, short min_final_cltv_expiry_delta, org.ldk.structs.EntropySource entropy_source) {
 855                 long ret = bindings.BlindedPath_one_hop_for_payment(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payee_node_id, 33)), payee_tlvs.ptr, min_final_cltv_expiry_delta, entropy_source.ptr);
 856                 GC.KeepAlive(payee_node_id);
 857                 GC.KeepAlive(payee_tlvs);
 858                 GC.KeepAlive(min_final_cltv_expiry_delta);
 859                 GC.KeepAlive(entropy_source);
 860                 if (ret >= 0 && ret <= 4096) { return null; }
 861                 Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ ret_hu_conv = Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ.constr_from_ptr(ret);
 862                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payee_tlvs); };
 863                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 864                 return ret_hu_conv;
 865         }
 866
 867         /**
 868          * Create a blinded path for a payment, to be forwarded along `intermediate_nodes`.
 869          *
 870          * Errors if:
 871          * a provided node id is invalid
 872          * [`BlindedPayInfo`] calculation results in an integer overflow
 873          * any unknown features are required in the provided [`ForwardTlvs`]
 874          *
 875          * [`ForwardTlvs`]: crate::blinded_path::payment::ForwardTlvs
 876          */
 877         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, short min_final_cltv_expiry_delta, org.ldk.structs.EntropySource entropy_source) {
 878                 long ret = bindings.BlindedPath_new_for_payment(InternalUtils.encodeUint64Array(InternalUtils.mapArray(intermediate_nodes, intermediate_nodes_conv_13 => intermediate_nodes_conv_13.ptr)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payee_node_id, 33)), payee_tlvs.ptr, htlc_maximum_msat, min_final_cltv_expiry_delta, entropy_source.ptr);
 879                 GC.KeepAlive(intermediate_nodes);
 880                 GC.KeepAlive(payee_node_id);
 881                 GC.KeepAlive(payee_tlvs);
 882                 GC.KeepAlive(htlc_maximum_msat);
 883                 GC.KeepAlive(min_final_cltv_expiry_delta);
 884                 GC.KeepAlive(entropy_source);
 885                 if (ret >= 0 && ret <= 4096) { return null; }
 886                 Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ ret_hu_conv = Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ.constr_from_ptr(ret);
 887                 foreach (ForwardNode intermediate_nodes_conv_13 in intermediate_nodes) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(intermediate_nodes_conv_13); }; };
 888                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payee_tlvs); };
 889                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 890                 return ret_hu_conv;
 891         }
 892
 893         /**
 894          * Read a PathFailure from a byte array, created by PathFailure_write
 895          */
 896         public static Result_COption_PathFailureZDecodeErrorZ PathFailure_read(byte[] ser) {
 897                 long ret = bindings.PathFailure_read(InternalUtils.encodeUint8Array(ser));
 898                 GC.KeepAlive(ser);
 899                 if (ret >= 0 && ret <= 4096) { return null; }
 900                 Result_COption_PathFailureZDecodeErrorZ ret_hu_conv = Result_COption_PathFailureZDecodeErrorZ.constr_from_ptr(ret);
 901                 return ret_hu_conv;
 902         }
 903
 904         /**
 905          * Read a ClosureReason from a byte array, created by ClosureReason_write
 906          */
 907         public static Result_COption_ClosureReasonZDecodeErrorZ ClosureReason_read(byte[] ser) {
 908                 long ret = bindings.ClosureReason_read(InternalUtils.encodeUint8Array(ser));
 909                 GC.KeepAlive(ser);
 910                 if (ret >= 0 && ret <= 4096) { return null; }
 911                 Result_COption_ClosureReasonZDecodeErrorZ ret_hu_conv = Result_COption_ClosureReasonZDecodeErrorZ.constr_from_ptr(ret);
 912                 return ret_hu_conv;
 913         }
 914
 915         /**
 916          * Read a HTLCDestination from a byte array, created by HTLCDestination_write
 917          */
 918         public static Result_COption_HTLCDestinationZDecodeErrorZ HTLCDestination_read(byte[] ser) {
 919                 long ret = bindings.HTLCDestination_read(InternalUtils.encodeUint8Array(ser));
 920                 GC.KeepAlive(ser);
 921                 if (ret >= 0 && ret <= 4096) { return null; }
 922                 Result_COption_HTLCDestinationZDecodeErrorZ ret_hu_conv = Result_COption_HTLCDestinationZDecodeErrorZ.constr_from_ptr(ret);
 923                 return ret_hu_conv;
 924         }
 925
 926         /**
 927          * Read a Event from a byte array, created by Event_write
 928          */
 929         public static Result_COption_EventZDecodeErrorZ Event_read(byte[] ser) {
 930                 long ret = bindings.Event_read(InternalUtils.encodeUint8Array(ser));
 931                 GC.KeepAlive(ser);
 932                 if (ret >= 0 && ret <= 4096) { return null; }
 933                 Result_COption_EventZDecodeErrorZ ret_hu_conv = Result_COption_EventZDecodeErrorZ.constr_from_ptr(ret);
 934                 return ret_hu_conv;
 935         }
 936
 937         /**
 938          * Builds the necessary parameters to pay or pre-flight probe the given zero-amount
 939          * [`Bolt11Invoice`] using [`ChannelManager::send_payment`] or
 940          * [`ChannelManager::send_preflight_probes`].
 941          *
 942          * Prior to paying, you must ensure that the [`Bolt11Invoice::payment_hash`] is unique and the
 943          * same [`PaymentHash`] has never been paid before.
 944          *
 945          * Will always succeed unless the invoice has an amount specified, in which case
 946          * [`payment_parameters_from_invoice`] should be used.
 947          *
 948          * [`ChannelManager::send_payment`]: lightning::ln::channelmanager::ChannelManager::send_payment
 949          * [`ChannelManager::send_preflight_probes`]: lightning::ln::channelmanager::ChannelManager::send_preflight_probes
 950          */
 951         public static Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ payment_parameters_from_zero_amount_invoice(org.ldk.structs.Bolt11Invoice invoice, long amount_msat) {
 952                 long ret = bindings.payment_parameters_from_zero_amount_invoice(invoice.ptr, amount_msat);
 953                 GC.KeepAlive(invoice);
 954                 GC.KeepAlive(amount_msat);
 955                 if (ret >= 0 && ret <= 4096) { return null; }
 956                 Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ ret_hu_conv = Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ.constr_from_ptr(ret);
 957                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(invoice); };
 958                 return ret_hu_conv;
 959         }
 960
 961         /**
 962          * Builds the necessary parameters to pay or pre-flight probe the given [`Bolt11Invoice`] using
 963          * [`ChannelManager::send_payment`] or [`ChannelManager::send_preflight_probes`].
 964          *
 965          * Prior to paying, you must ensure that the [`Bolt11Invoice::payment_hash`] is unique and the
 966          * same [`PaymentHash`] has never been paid before.
 967          *
 968          * Will always succeed unless the invoice has no amount specified, in which case
 969          * [`payment_parameters_from_zero_amount_invoice`] should be used.
 970          *
 971          * [`ChannelManager::send_payment`]: lightning::ln::channelmanager::ChannelManager::send_payment
 972          * [`ChannelManager::send_preflight_probes`]: lightning::ln::channelmanager::ChannelManager::send_preflight_probes
 973          */
 974         public static Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ payment_parameters_from_invoice(org.ldk.structs.Bolt11Invoice invoice) {
 975                 long ret = bindings.payment_parameters_from_invoice(invoice.ptr);
 976                 GC.KeepAlive(invoice);
 977                 if (ret >= 0 && ret <= 4096) { return null; }
 978                 Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ ret_hu_conv = Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ.constr_from_ptr(ret);
 979                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(invoice); };
 980                 return ret_hu_conv;
 981         }
 982
 983         /**
 984          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
 985          * See [`PhantomKeysManager`] for more information on phantom node payments.
 986          *
 987          * `phantom_route_hints` parameter:
 988          * Contains channel info for all nodes participating in the phantom invoice
 989          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
 990          * participating node
 991          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
 992          * updated when a channel becomes disabled or closes
 993          * Note that if too many channels are included in [`PhantomRouteHints::channels`], the invoice
 994          * may be too long for QR code scanning. To fix this, `PhantomRouteHints::channels` may be pared
 995          * down
 996          *
 997          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
 998          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
 999          * If `None` is provided for `payment_hash`, then one will be created.
1000          *
1001          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1002          * in excess of the current time.
1003          *
1004          * `duration_since_epoch` is the current time since epoch in seconds.
1005          *
1006          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1007          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`] - 3.
1008          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1009          * confirmations during routing.
1010          *
1011          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
1012          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
1013          * requirement).
1014          *
1015          * [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
1016          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
1017          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
1018          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
1019          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
1020          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1021          *
1022          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1023          * available and the current time is supplied by the caller.
1024          */
1025         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) {
1026                 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.ptr)), entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
1027                 GC.KeepAlive(amt_msat);
1028                 GC.KeepAlive(payment_hash);
1029                 GC.KeepAlive(description);
1030                 GC.KeepAlive(invoice_expiry_delta_secs);
1031                 GC.KeepAlive(phantom_route_hints);
1032                 GC.KeepAlive(entropy_source);
1033                 GC.KeepAlive(node_signer);
1034                 GC.KeepAlive(logger);
1035                 GC.KeepAlive(network);
1036                 GC.KeepAlive(min_final_cltv_expiry_delta);
1037                 GC.KeepAlive(duration_since_epoch);
1038                 if (ret >= 0 && ret <= 4096) { return null; }
1039                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1040                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1041                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payment_hash); };
1042                 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); }; };
1043                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
1044                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1045                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1046                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1047                 return ret_hu_conv;
1048         }
1049
1050         /**
1051          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
1052          * See [`PhantomKeysManager`] for more information on phantom node payments.
1053          *
1054          * `phantom_route_hints` parameter:
1055          * Contains channel info for all nodes participating in the phantom invoice
1056          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
1057          * participating node
1058          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
1059          * updated when a channel becomes disabled or closes
1060          * Note that the route hints generated from `phantom_route_hints` will be limited to a maximum
1061          * of 3 hints to ensure that the invoice can be scanned in a QR code. These hints are selected
1062          * in the order that the nodes in `PhantomRouteHints` are specified, selecting one hint per node
1063          * until the maximum is hit. Callers may provide as many `PhantomRouteHints::channels` as
1064          * desired, but note that some nodes will be trimmed if more than 3 nodes are provided.
1065          *
1066          * `description_hash` is a SHA-256 hash of the description text
1067          *
1068          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
1069          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
1070          * If `None` is provided for `payment_hash`, then one will be created.
1071          *
1072          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1073          * in excess of the current time.
1074          *
1075          * `duration_since_epoch` is the current time since epoch in seconds.
1076          *
1077          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
1078          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
1079          * requirement).
1080          *
1081          * [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
1082          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
1083          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
1084          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
1085          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
1086          *
1087          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1088          * available and the current time is supplied by the caller.
1089          */
1090         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) {
1091                 long ret = bindings.create_phantom_invoice_with_description_hash(amt_msat.ptr, payment_hash.ptr, invoice_expiry_delta_secs, description_hash.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(phantom_route_hints, phantom_route_hints_conv_19 => phantom_route_hints_conv_19.ptr)), entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
1092                 GC.KeepAlive(amt_msat);
1093                 GC.KeepAlive(payment_hash);
1094                 GC.KeepAlive(invoice_expiry_delta_secs);
1095                 GC.KeepAlive(description_hash);
1096                 GC.KeepAlive(phantom_route_hints);
1097                 GC.KeepAlive(entropy_source);
1098                 GC.KeepAlive(node_signer);
1099                 GC.KeepAlive(logger);
1100                 GC.KeepAlive(network);
1101                 GC.KeepAlive(min_final_cltv_expiry_delta);
1102                 GC.KeepAlive(duration_since_epoch);
1103                 if (ret >= 0 && ret <= 4096) { return null; }
1104                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1105                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1106                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payment_hash); };
1107                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1108                 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); }; };
1109                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
1110                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1111                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1112                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1113                 return ret_hu_conv;
1114         }
1115
1116         /**
1117          * Utility to construct an invoice. Generally, unless you want to do something like a custom
1118          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
1119          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
1120          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
1121          * that the payment secret is valid when the invoice is paid.
1122          *
1123          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1124          * in excess of the current time.
1125          *
1126          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1127          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
1128          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1129          * confirmations during routing.
1130          *
1131          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1132          */
1133         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) {
1134                 long ret = bindings.create_invoice_from_channelmanager(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, InternalUtils.encodeString(description), invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1135                 GC.KeepAlive(channelmanager);
1136                 GC.KeepAlive(node_signer);
1137                 GC.KeepAlive(logger);
1138                 GC.KeepAlive(network);
1139                 GC.KeepAlive(amt_msat);
1140                 GC.KeepAlive(description);
1141                 GC.KeepAlive(invoice_expiry_delta_secs);
1142                 GC.KeepAlive(min_final_cltv_expiry_delta);
1143                 if (ret >= 0 && ret <= 4096) { return null; }
1144                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1145                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1146                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1147                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1148                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1149                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1150                 return ret_hu_conv;
1151         }
1152
1153         /**
1154          * Utility to construct an invoice. Generally, unless you want to do something like a custom
1155          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
1156          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
1157          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
1158          * that the payment secret is valid when the invoice is paid.
1159          * Use this variant if you want to pass the `description_hash` to the invoice.
1160          *
1161          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1162          * in excess of the current time.
1163          *
1164          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1165          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
1166          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1167          * confirmations during routing.
1168          *
1169          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1170          */
1171         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) {
1172                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1173                 GC.KeepAlive(channelmanager);
1174                 GC.KeepAlive(node_signer);
1175                 GC.KeepAlive(logger);
1176                 GC.KeepAlive(network);
1177                 GC.KeepAlive(amt_msat);
1178                 GC.KeepAlive(description_hash);
1179                 GC.KeepAlive(invoice_expiry_delta_secs);
1180                 GC.KeepAlive(min_final_cltv_expiry_delta);
1181                 if (ret >= 0 && ret <= 4096) { return null; }
1182                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1183                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1184                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1185                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1186                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1187                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1188                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1189                 return ret_hu_conv;
1190         }
1191
1192         /**
1193          * See [`create_invoice_from_channelmanager_with_description_hash`]
1194          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1195          * available and the current time is supplied by the caller.
1196          */
1197         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) {
1198                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash.ptr, duration_since_epoch, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1199                 GC.KeepAlive(channelmanager);
1200                 GC.KeepAlive(node_signer);
1201                 GC.KeepAlive(logger);
1202                 GC.KeepAlive(network);
1203                 GC.KeepAlive(amt_msat);
1204                 GC.KeepAlive(description_hash);
1205                 GC.KeepAlive(duration_since_epoch);
1206                 GC.KeepAlive(invoice_expiry_delta_secs);
1207                 GC.KeepAlive(min_final_cltv_expiry_delta);
1208                 if (ret >= 0 && ret <= 4096) { return null; }
1209                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1210                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1211                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1212                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1213                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1214                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1215                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1216                 return ret_hu_conv;
1217         }
1218
1219         /**
1220          * See [`create_invoice_from_channelmanager`]
1221          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1222          * available and the current time is supplied by the caller.
1223          */
1224         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) {
1225                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch(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);
1226                 GC.KeepAlive(channelmanager);
1227                 GC.KeepAlive(node_signer);
1228                 GC.KeepAlive(logger);
1229                 GC.KeepAlive(network);
1230                 GC.KeepAlive(amt_msat);
1231                 GC.KeepAlive(description);
1232                 GC.KeepAlive(duration_since_epoch);
1233                 GC.KeepAlive(invoice_expiry_delta_secs);
1234                 GC.KeepAlive(min_final_cltv_expiry_delta);
1235                 if (ret >= 0 && ret <= 4096) { return null; }
1236                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1237                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1238                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1239                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1240                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1241                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1242                 return ret_hu_conv;
1243         }
1244
1245         /**
1246          * See [`create_invoice_from_channelmanager_and_duration_since_epoch`]
1247          * This version allows for providing a custom [`PaymentHash`] for the invoice.
1248          * This may be useful if you're building an on-chain swap or involving another protocol where
1249          * the payment hash is also involved outside the scope of lightning.
1250          */
1251         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) {
1252                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(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);
1253                 GC.KeepAlive(channelmanager);
1254                 GC.KeepAlive(node_signer);
1255                 GC.KeepAlive(logger);
1256                 GC.KeepAlive(network);
1257                 GC.KeepAlive(amt_msat);
1258                 GC.KeepAlive(description);
1259                 GC.KeepAlive(duration_since_epoch);
1260                 GC.KeepAlive(invoice_expiry_delta_secs);
1261                 GC.KeepAlive(payment_hash);
1262                 GC.KeepAlive(min_final_cltv_expiry_delta);
1263                 if (ret >= 0 && ret <= 4096) { return null; }
1264                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1265                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1266                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1267                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1268                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1269                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1270                 return ret_hu_conv;
1271         }
1272
1273 } } } }