def speedReceived(speed):
        """
        Method called when the speed is received.

        @param speed: The speed of a mobile object.
        @type speed: L{twisted.positioning.base.Speed}
        """

        Method called when the speed is received.

        @param speed: The speed of a mobile object.
        @type speed: L{twisted.positioning.base.Speed}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/positioning/ipositioning.py