def signMessage(self, message, privateKey):
    message_hash = self.hashMessage(message)
    signature = self.signHash(message_hash[(- 64):], privateKey[(- 64):])
    return signature
def signMessage(self, message, privateKey):
    message_hash = self.hashMessage(message)
    signature = self.signHash(message_hash[(- 64):], privateKey[(- 64):])
    return signature