<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def resize(self, width: int, height: int):

 """
 Replacement for Qt's resizeGL method.
 """

        self.width = width // self.widget.devicePixelRatio()
        self.height = height // self.widget.devicePixelRatio()
        self.buffer_width = width
        self.buffer_height = height

        if self.ctx:
            self.set_default_viewport()

        # Make sure we notify the example about the resize
        super().resize(self.buffer_width, self.buffer_height)