Return a location point by address.

        :param str query: The address or query you wish to geocode.

        :param bool exactly_one: Return one result or a list of results, if
            available.

        :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.

        :param int limit: Maximum amount of results to return from the service.
            Unless exactly_one is set to False, limit will always be 1.

        :param bool typeahead: If the "typeahead" flag is set, the query
            will be interpreted as a partial input and the search will
            enter predictive mode.

        :param str language: Language in which search results should be
            returned. When data in specified language is not
            available for a specific field, default language is used.
            List of supported languages (case-insensitive):
            https://developer.tomtom.com/online-search/online-search-documentation/supported-languages

        :rtype: ``None``, :class:`geopy.location.Location` or a list of them, if
            ``exactly_one=False``.

def geocode(
            self,
            query,
            exactly_one=True,
            timeout=DEFAULT_SENTINEL,
            limit=None,
            typeahead=False,
            language=None,
    ):
        """
        Return a location point by address.

        :param str query: The address or query you wish to geocode.

        :param bool exactly_one: Return one result or a list of results, if
            available.

        :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.

        :param int limit: Maximum amount of results to return from the service.
            Unless exactly_one is set to False, limit will always be 1.

        :param bool typeahead: If the "typeahead" flag is set, the query
            will be interpreted as a partial input and the search will
            enter predictive mode.

        :param str language: Language in which search results should be
            returned. When data in specified language is not
            available for a specific field, default language is used.
            List of supported languages (case-insensitive):
            https://developer.tomtom.com/online-search/online-search-documentation/supported-languages

        :rtype: ``None``, :class:`geopy.location.Location` or a list of them, if
            ``exactly_one=False``.
        """
        query = self.format_string % query
        params = self._geocode_params(query)
        params['typeahead'] = self._boolean_value(typeahead)

        if limit:
            params['limit'] = str(int(limit))
        if exactly_one:
            params['limit'] = '1'

        if language:
            params['language'] = language

        quoted_query = quote(query.encode('utf-8'))
        url = "?".join((self.api % dict(query=quoted_query),
                        urlencode(params)))
        logger.debug("%s.geocode: %s", self.__class__.__name__, url)

        return self._parse_json(
            self._call_geocoder(url, timeout=timeout), exactly_one
        )