(self)
return bool(self.stack) and self.peek().beginning is not None
Check if the timer has been started

        Returns false if the timer has not yet started or was started
        and then stopped, otherwise true.
Check if the timer has been started
Check if the timer has been started
def is_started(self):
        """Check if the timer has been started

        Returns false if the timer has not yet started or was started
        and then stopped, otherwise true.
        """
        return bool(self.stack) and self.peek().beginning is not None
def is_started ( self ) : return bool ( self . stack ) and self . peek ( ) . beginning is not None