def wheel(self, direction, steps):
        """ Clicks the wheel the specified number of steps in the given direction.

        Use Mouse.WHEEL_DOWN, Mouse.WHEEL_UP
        """
        self._lock.acquire()
        if direction == 1:
            wheel_moved = steps
        elif direction == 0:
            wheel_moved = -1*steps
        else:
            raise ValueError("Expected direction to be 1 or 0")
        self._lock.release()
        return mouse.wheel(wheel_moved)
Clicks the wheel the specified number of steps in the given direction.

        Use Mouse.WHEEL_DOWN, Mouse.WHEEL_UP