def start(self, value: typing.Union[float, typing.Tuple[float, float]]) -> None:
        """Set the end property in relative coordinates.

        End may be a float when graphic is an Interval or a tuple (y, x) when graphic is a Line."""
        ...
def start ( self , value : typing . Union [ float , typing . Tuple [ float , float ] ] ) -> None : ...
Set the end property in relative coordinates.

        End may be a float when graphic is an Interval or a tuple (y, x) when graphic is a Line.