class_docstr: This class constructs a protocol service class using a service descriptor.
  
  Given a service descriptor, this class constructs a class that represents
  the specified service descriptor. One service builder instance constructs
  exactly one service class. That means all instances of that class share the
  same builder.
class_docstr_tok: ["This","class","constructs","a","protocol","service","class","using","a","service","descriptor",".","Given","a","service","descriptor",",","this","class","constructs","a","class","that","represents","the","specified","service","descriptor",".","One","service","builder","instance","constructs","exactly","one","service","class",".","That","means","all","instances","of","that","class","share","the","same","builder","."]
docstr: The body of all methods in the generated service class.
  
  Args:
    method_name: Name of the method being executed.
    rpc_controller: RPC controller used to execute this method.
    callback: A callback which will be invoked when the method finishes.
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code: def _NonImplementedMethod(
      self, method_name, rpc_controller, callback
  ):
      """The body of all methods in the generated service class.
  
      Args:
        method_name: Name of the method being executed.
        rpc_controller: RPC controller used to execute this method.
        callback: A callback which will be invoked when the method finishes.
      """
      rpc_controller.SetFailed(
          "Method %s not implemented." % method_name
      )
      callback(None)
  
label_desc: Use image node_id 7 for calling the _ServiceBuilder obj's underlying member method code with example usage: obj._NonImplementedMethod(method_name, rpc_controller, callback) without return types