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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def on_mouse_motion(self, x, y, dx, dy):

 """
 Pyglet specific mouse motion callback.
 Forwards and traslates the event to the example
 """

        # Screen coordinates relative to the lower-left corner
        # so we have to flip the y axis to make this consistent with
        # other window libraries
        self.example.mouse_position_event(x, self.buffer_height - y)