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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 fill(self, value=b'\xff'):
 """Fill all empty space between segments with given value `value`. """


        previous_segment_maximum_address = None
        fill_segments = []

        for address, data in self._segments:
            maximum_address = address + len(data)

            if previous_segment_maximum_address is not None:
                fill_size = address - previous_segment_maximum_address
                fill_size_words = fill_size // self.word_size_bytes
                fill_segments.append(_Segment(
                    previous_segment_maximum_address,
                    previous_segment_maximum_address + fill_size,
                    value * fill_size_words,
                    self.word_size_bytes))

            previous_segment_maximum_address = maximum_address

        for segment in fill_segments:
            self._segments.add(segment)