Get page by ID
        :param page_id: Content ID
        :param expand: OPTIONAL: expand e.g. history
        :return:

def get_page_by_id(self, page_id, expand=None):
        """
        Get page by ID
        :param page_id: Content ID
        :param expand: OPTIONAL: expand e.g. history
        :return:
        """
        url = 'rest/api/content/{page_id}?expand={expand}'.format(page_id=page_id, expand=expand)
        return self.get(url)