def current(self):
        """
        Currently active item on the _timeline Canvas

        :rtype: str
        """
        results = self._timeline.find_withtag(tk.CURRENT)
        return results[0] if len(results) != 0 else None
def current ( self ) : results = self . _timeline . find_withtag ( tk . CURRENT ) return results [ 0 ] if len ( results ) != 0 else None
Currently active item on the _timeline Canvas

        :rtype: str