def get_funds_fields_from_struct(self, buf: bytes) -> bytes:
""" Gets all funds fields for a transaction from a buffer.
:param buf: Bytes of a serialized transaction
:type buf: bytes
:return: A buffer containing the remaining struct bytes
:rtype: bytes
:raises ValueError: when the sequence of bytes is incorect
"""
(self.version, tokens_len, inputs_len,
outputs_len), buf = unpack(_FUNDS_FORMAT_STRING, buf)
for _ in range(tokens_len):
token_uid, buf = unpack_len(TX_HASH_SIZE, buf)
self.tokens.append(token_uid)
for _ in range(inputs_len):
txin, buf = TxInput.create_from_bytes(buf)
self.inputs.append(txin)
for _ in range(outputs_len):
txout, buf = TxOutput.create_from_bytes(buf)
self.outputs.append(txout)
return buf
def get_funds_fields_from_struct(self, buf: bytes) -> bytes:
""" Gets all funds fields for a block from a buffer.
:param buf: Bytes of a serialized block
:type buf: bytes
:return: A buffer containing the remaining struct bytes
:rtype: bytes
:raises ValueError: when the sequence of bytes is incorect
"""
(self.version, outputs_len), buf = unpack(_FUNDS_FORMAT_STRING, buf)
for _ in range(outputs_len):
txout, buf = TxOutput.create_from_bytes(buf)
self.outputs.append(txout)
return buf
