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: Checks if the message is initialized.
  
  Returns:
    bool: The method returns True if the message is initialized (i.e. all of
    its required fields are set).
docstr_tok: ["Checks","if","the","message","is","initialized",".","Returns",":","bool",":","The","method","returns","True","if","the","message","is","initialized","(","i.e",".","all","of","its","required","fields","are","set",")","."]
code: def IsInitialized(self):
      """Checks if the message is initialized.
  
      Returns:
        bool: The method returns True if the message is initialized (i.e. all of
        its required fields are set).
      """
      raise NotImplementedError
  
label_desc: Use image node_id 11 for calling the Message obj's underlying member method code with example usage: obj.IsInitialized() without return types