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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 bytes(self, count):
 """Returns a bytearray of length `count`. Works unaligned."""


        if count < 0:
            raise ValueError

        # fast path
        if self._bits == 0:
            data = self._fileobj.read(count)
            if len(data) != count:
                raise BitReaderError("not enough data")
            return data

        return bytes(bytearray(self.bits(8) for _ in xrange(count)))