parameters: (self)
docstring: Serializes the protocol message to a binary string.
  
      Returns:
        A binary string representation of the message if all of the required
        fields in the message are set (i.e. the message is initialized).
  
      Raises:
        message.EncodeError if the message isn't initialized.
docstring_summary: Serializes the protocol message to a binary string.
docstring_tokens: Serializes the protocol message to a binary string .
function: def SerializeToString(self):
      """Serializes the protocol message to a binary string.
  
      Returns:
        A binary string representation of the message if all of the required
        fields in the message are set (i.e. the message is initialized).
  
      Raises:
        message.EncodeError if the message isn't initialized.
      """
      raise NotImplementedError
function_tokens: def SerializeToString ( self ) : raise NotImplementedError