__init__ (
        self,
        report_frame_rate_cb,
        averaging_interval,
        )

add_handler ( self )

check_for_changes_cb (
        self,
        trigger,
        callData,
        triggerData,
        )

force_redisplay ( self )

remove_handler ( self )

report_continuously ( self )

report_once ( self )

report_rate ( self,  rate )

stop_reporting ( self )