script_pub_key: ScriptBuf::new(),
          amount,
          confirmations: 0,
          spendable: true,
          solvable: true,
          descriptor: None,
          safe: true,
        })
        .collect(),
    )
  }

  fn list_lock_unspent(&self) -> Result<Vec<JsonOutPoint>, jsonrpc_core::Error> {
    Ok(
      self
        .state()
        .locked
        .iter()
        .map(|outpoint| (*outpoint).into())
        .collect(),
    )
  }

  fn get_raw_change_address(
    &self,
    _address_type: Option<bitcoincore_rpc::json::AddressType>,
  ) -> Result<Address, jsonrpc_core::Error> {
    let secp256k1 = Secp256k1::new();
    let key_pair = KeyPair::new(&secp256k1, &mut rand::thread_rng());
    let (public_key, _parity) = XOnlyPublicKey::from_keypair(&key_pair);
    let address = Address::p2tr(&secp256k1, public_key, None, self.network);
    self.state().change_addresses.push(address.clone());

    Ok(address)
  }

  fn get_descriptor_info(
    &self,
    desc: String,
  ) -> Result<GetDescriptorInfoResult, jsonrpc_core::Error> {