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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 clear_buffer(self, fg, attr, bg):
 """ Clear the current double-buffer used by this object. :param fg: The foreground colour to use for the new buffer. :param attr: The attribute value to use for the new buffer. :param bg: The background colour to use for the new buffer. """

        self._buffer.clear(fg, attr, bg)