(self)
Ensure as many of the metrics as possible are sent to the handers on
        a shutdown
Ensure as many of the metrics as possible are sent to the handers on
        a shutdown
Ensure as many of the metrics as possible are sent to the handers on a shutdown
def __del__(self):
        """
        Ensure as many of the metrics as possible are sent to the handers on
        a shutdown
        """
        self._flush()
def __del__ ( self ) : self . _flush ( )