Returns the list of labels on a piece of Content.
        :param space: Space key
        :param title: Title of the page
        :param start: OPTIONAL: The start point of the collection to return. Default: None (0).
        :param limit: OPTIONAL: The limit of the number of labels to return, this may be restricted by
                            fixed system limits. Default: 200.
        :return: The JSON data returned from searched results the content endpoint, or the results of the
                 callback. Will raise requests.HTTPError on bad input, potentially.
                 If it has IndexError then return the None.

def get_page_by_title(self, space, title, start=None, limit=None):
        """
        Returns the list of labels on a piece of Content.
        :param space: Space key
        :param title: Title of the page
        :param start: OPTIONAL: The start point of the collection to return. Default: None (0).
        :param limit: OPTIONAL: The limit of the number of labels to return, this may be restricted by
                            fixed system limits. Default: 200.
        :return: The JSON data returned from searched results the content endpoint, or the results of the
                 callback. Will raise requests.HTTPError on bad input, potentially.
                 If it has IndexError then return the None.
        """
        url = 'rest/api/content'
        params = {}
        if start is not None:
            params['start'] = int(start)
        if limit is not None:
            params['limit'] = int(limit)
        if space is not None:
            params['spaceKey'] = str(space)
        if space is not None:
            params['title'] = str(title)
        try:
            return (self.get(url, params=params) or {}).get('results')[0]
        except IndexError as e:
            log.error(e)
            return None