(self, start=None)
return self.aggregate(aggregations.Sum(), start)
Sum frame.

        Parameters
        ----------
        start: None or resulting Python object type from the operation
            Accepts a valid start state.
Sum frame.
Sum frame .
def sum(self, start=None):
        """ Sum frame.

        Parameters
        ----------
        start: None or resulting Python object type from the operation
            Accepts a valid start state.
        """
        return self.aggregate(aggregations.Sum(), start)
def sum ( self , start = None ) : return self . aggregate ( aggregations . Sum ( ) , start )