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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_resize(self):
 """ When the window size changes, we erase the current output and request again the cursor position. When the CPR answer arrives, the output is drawn again. """

        # Erase, request position (when cursor is at the start position)
        # and redraw again. -- The order is important.
        self.renderer.erase(leave_alternate_screen=False, erase_title=False)
        self.renderer.request_absolute_cursor_position()
        self._redraw()