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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 _deserialize(self):
 """Try and deserialize a response body based upon the specified content type. :rtype: mixed """

        if not self._responses or not self._responses[-1].body:
            return None
        if 'Content-Type' not in self._responses[-1].headers:
            return self._responses[-1].body
        try:
            content_type = algorithms.select_content_type(
                [headers.parse_content_type(
                    self._responses[-1].headers['Content-Type'])],
                AVAILABLE_CONTENT_TYPES)
        except errors.NoMatch:
            return self._responses[-1].body

        if content_type[0] == CONTENT_TYPE_JSON:
            return self._decode(
                self._json.loads(self._decode(self._responses[-1].body)))
        elif content_type[0] == CONTENT_TYPE_MSGPACK:  # pragma: nocover
            return self._decode(
                self._msgpack.unpackb(self._responses[-1].body))