code: def timeseries():
      
      def method_builder(cls):
          method_doc = """Fetch the timeseries for this :class:`{0}`.
  
          Returns:
  
              The :class:`Timeseries` for this :class:`{0}`
  
          Keyword Args:
  
              **kwargs: The :class:`Timeseries` object constructor arguments.
          """.format(cls.__name__)
  
          def method(self, **kwargs):
              resource_id = None if self.is_singleton() else self.id
              return Timeseries(self._session, cls, resource_id, **kwargs)
  
          method.__doc__ = method_doc
          setattr(cls, 'timeseries', method)
          return cls
      return method_builder
docs: Create a timeseries builder.
  
      Returns:
  
          A builder function which, given a class creates a timeseries
          relationship for that class.