public static constructor_new(channel_id_arg: Uint8Array, htlc_id_arg: bigint, payment_preimage_arg: Uint8Array): UpdateFulfillHTLC {
const ret: number = bindings.UpdateFulfillHTLC_new(bindings.encodeUint8Array(bindings.check_arr_len(channel_id_arg, 32)), htlc_id_arg, bindings.encodeUint8Array(bindings.check_arr_len(payment_preimage_arg, 32)));
const ret_hu_conv: UpdateFulfillHTLC = new UpdateFulfillHTLC(null, ret);
public static constructor_new(channel_id_arg: Uint8Array, htlc_id_arg: bigint, payment_preimage_arg: Uint8Array): UpdateFulfillHTLC {
const ret: number = bindings.UpdateFulfillHTLC_new(bindings.encodeUint8Array(bindings.check_arr_len(channel_id_arg, 32)), htlc_id_arg, bindings.encodeUint8Array(bindings.check_arr_len(payment_preimage_arg, 32)));
const ret_hu_conv: UpdateFulfillHTLC = new UpdateFulfillHTLC(null, ret);