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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 reverse_timezone(self, query, timeout=DEFAULT_SENTINEL):
 """ Find the timezone for a point in `query`. GeoNames always returns a timezone: if the point being queried doesn't have an assigned Olson timezone id, a ``pytz.FixedOffset`` timezone is used to produce the :class:`geopy.timezone.Timezone`. .. versionadded:: 1.18.0 :param query: The coordinates for which you want a timezone. :type query: :class:`geopy.point.Point`, list or tuple of (latitude, longitude), or string as "%(latitude)s, %(longitude)s" :param int timeout: Time, in seconds, to wait for the geocoding service to respond before raising a :class:`geopy.exc.GeocoderTimedOut` exception. Set this only if you wish to override, on this call only, the value set during the geocoder's initialization. :rtype: :class:`geopy.timezone.Timezone` """

        ensure_pytz_is_installed()

        try:
            lat, lng = self._coerce_point_to_string(query).split(',')
        except ValueError:
            raise ValueError("Must be a coordinate pair or Point")

        params = {
            "lat": lat,
            "lng": lng,
            "username": self.username,
        }

        url = "?".join((self.api_timezone, urlencode(params)))

        logger.debug("%s.reverse_timezone: %s", self.__class__.__name__, url)
        return self._parse_json_timezone(
            self._call_geocoder(url, timeout=timeout)
        )