docs: def sign(self, message, *args, **kwargs):
          '''
          Make a signature.
  
          :param message: Message to sign
          :param key_id: Key for signing, default will be used if null
          :param passphrase: Key password
          :param clearsign: Make a clear text signature
          :param detach: Make a detached signature
          :param binary: If false, create ASCII armored output
          :rtype: SignResult
          '''
          return self.sign_file(self.create_stream(message), *args, **kwargs)