class_docstr: Abstract base class for protocol messages.
  
  Protocol message classes are almost always generated by the protocol
  compiler.  These generated types subclass Message and implement the methods
  shown below.
docstr: Parse serialized protocol buffer data into this message.
  
  Like :func:`MergeFromString()`, except we clear the object first.
docstr_tok: ["Parse","serialized","protocol","buffer","data","into","this","message",".","Like",":","func",":","`","MergeFromString","(",")","`",",","except","we","clear","the","object","first","."]
code: def ParseFromString(self, serialized):
      """Parse serialized protocol buffer data into this message.
  
      Like :func:`MergeFromString()`, except we clear the object first.
      """
      self.Clear()
      return self.MergeFromString(serialized)
  
label_desc: Use image node_id 13 for calling the Message obj's underlying member method code with example usage: obj.ParseFromString(serialized) and returns: self