{
  psbts: [<BIP 174 Encoded PSBT Hex String>]
}

@throws
<Combine PSBT Error>

@returns
{
  psbt: <BIP 174 Encoded PSBT Hex String>
}

{
  outputs: [{
    script: <Output ScriptPub Hex String>
    tokens: <Sending Tokens Number>
  }]
  utxos: [{
    id: <Transaction Id Hex String>
    [sequence]: <Sequence Number>
    vout: <Output Index Number>
  }]
  [timelock]: <Set Lock Time on Transaction To Number>
  [version]: <Transaction Version Number>
}

@returns
{
  psbt: <Partially Signed Bitcoin Transaction Hex Encoded String>
}

{
  psbt: <Hex Encoded Partially Signed Bitcoin Transaction String>
}

@throws
<Invalid PSBT Error>

@returns
{
  inputs: [{
     [bip32_derivations]: [{
        fingerprint: <Public Key Fingerprint Hex String>
        path: <BIP 32 Child / Hardened Child / Index Derivation Path String>
        public_key: <Public Key Hex String>
    }]
    [final_scriptsig]: <Final ScriptSig Hex String>
    [final_scriptwitness]: <Final Script Witness Hex String>
    [non_witness_utxo]: <Non-Witness Hex Encoded Transaction String>
    [partial_sig]: [{
      hash_type: <Signature Hash Type Number>
      public_key: <Public Key Hex String>
      signature: <Signature Hex String>
    }]
    [redeem_script]: <Hex Encoded Redeem Script String>
    [sighash_type]: <Sighash Type Number>
    [unrecognized_attributes]: [{
      type: <Key Type Hex String>
      value: <Value Hex String>
    }]
    [witness_script]: <Witness Script Hex String>
    [witness_utxo]: {
      script_pub: <UTXO ScriptPub Hex String>
      tokens: <Tokens Number>
    }
  }]
  outputs: [{
    [bip32_derivation]: {
      fingerprint: <Public Key Fingerprint Hex String>
      path: <BIP 32 Child/HardenedChild/Index Derivation Path Hex String>
      public_key: <Public Key Hex String>
    }
    [redeem_script]: <Hex Encoded Redeem Script>
    [unrecognized_attributes]: [{
      type: <Key Type Hex String>
      value: <Value Hex String>
    }]
    [witness_script]: <Hex Encoded Witness Script>
  }]
  pairs: [{
    type: <Key Type Hex String>
    value: <Value Hex String>
  }]
  [unrecognized_attributes]: [{
    type: <Global Key Type Hex String>
    value: <Global Value Hex String>
  }]
  unsigned_transaction: <Unsigned Transaction Hex String>
}

{
  pairs: [{
    [separator]: <Is Separator Bool>
    [type]: <Type Buffer Object>
    [value]: <Value Buffer Object>
  }]
}

@throws
<Failed To Encode Error>

@returns
{
  psbt: <Hex Encoded Partially Signed Bitcoin Transaction String>
}

{
  psbt: <BIP 174 Encoded PSBT Hex String>
}

@throws
<Extract Transaction Error>

@returns
{
  transaction: <Hex Serialized Transaction String>
}

{
  psbt: <BIP 174 Encoded PSBT Hex String>
}

@throws
<Finalize PSBT Error>

@returns
{
  psbt: <BIP 174 Encoded PSBT Hex String>
}

{
  network: <Network Name String>
  psbt: <BIP 174 Encoded PSBT Hex String>
  signing_keys: [<WIF Encoded Private Key String>]
}

@throws
<Sign PSBT Error>

@returns
{
  psbt: <BIP 174 Encoded PSBT Hex String>
}

{
  spending: [<Spending Transaction Hex String>]
  transaction: <Hex Encoded Transaction String>
}

@throws
<Error>

@returns
{
  psbt: <Signed PSBT String>
}

{
  [additional_attributes]: [{
    type: <Type Hex String>
    value: <Value Hex String>
    vin: <Input Index Number>
    vout: <Output Index Number>
  }]
  [bip32_derivations]: [{
    fingerprint: <BIP 32 Fingerprint of Parent's Key Hex String>
    path: <BIP 32 Derivation Path String>
    public_key: <Public Key String>
  }]
  psbt: <BIP 174 Encoded PSBT String>
  [redeem_scripts]: [<Hex Encoded Redeem Script String>]
  [sighashes]: [{
    id: <Transaction Id String>
    sighash: <Sighash Flag Number>
    vout: <Spending Output Index Number>
  }]
  [signatures]: [{
    vin: <Signature Input Index Number>
    hash_type: <Signature Hash Type Number>
    public_key: <BIP 32 Public Key String>
    signature: <Signature Hex String>
  }]
  [transactions]: [<Hex Encoding Transaction String>]
  [witness_scripts]: [<Witness Script String>]
}

@throws
<Update PSBT Error>

@returns
{
  psbt: <Hex Encoded Partially Signed Bitcoin Transaction String>
}