parameters: (
        self, name, full_name, index, containing_type, fields, options=None)
docstring: Arguments are as described in the attribute description above.
docstring_summary: Arguments are as described in the attribute description above.
docstring_tokens: Arguments are as described in the attribute description above .
function: def __init__(
        self, name, full_name, index, containing_type, fields, options=None):
      """Arguments are as described in the attribute description above."""
      super(OneofDescriptor, self).__init__(options, 'OneofOptions')
      self.name = name
      self.full_name = full_name
      self.index = index
      self.containing_type = containing_type
      self.fields = fields
function_tokens: def __init__ ( self , name , full_name , index , containing_type , fields , options = None ) : super ( OneofDescriptor , self ) . __init__ ( options , 'OneofOptions' ) self . name = name self . full_name = full_name self . index = index self . containing_type = containing_type self . fields = fields