docs: def get_content(self, content_type=None, space_key=None, title=None, status=None, posting_day=None,
                      expand=None, start=None, limit=None, callback=None):
          """
          Returns a paginated list of Content.
          :param content_type (string): OPTIONAL: The content type to return. Default value: "page".
                                        Valid values: "page","blogpost".
          :param space_key (string): OPTIONAL: The space key to find content under.
          :param title (string): OPTIONAL: The title of the page to find. Required for page type.
          :param status (string): OPTIONAL: List of statuses the content to be found is in. Defaults to current
                                  is not specified. If set to 'any', content in 'current' and 'trashed' status
                                  will be fetched. Does not support 'historical' status for now.
          :param posting_day (string): OPTIONAL: The posting day of the blog post. Required for blogpost type.
                                       Format: yyyy-mm-dd. Example: 2013-02-13
          :param expand (string): OPTIONAL: A comma separated list of properties to expand on the content.
                                  Default value: history,space,version
          :param start (int): OPTIONAL: The start point of the collection to return.
          :param limit (int): OPTIONAL: The limit of the number of items to return,
                              this may be restricted by fixed system limits.
          :param callback: OPTIONAL: The callback to execute on the resulting data, before the method returns.
                           Default: None (no callback, raw data returned).
          :return: The JSON data returned from the content endpoint, or the results of the callback.
                   Will raise requests.HTTPError on bad input, potentially.
          """
          params = {}
          if content_type:
              params["type"] = content_type
          if space_key:
              params["spaceKey"] = space_key
          if title:
              params["title"] = title
          if status:
              params["status"] = status
          if posting_day:
              params["postingDay"] = posting_day
          if expand:
              params["expand"] = expand
          if start is not None:
              params["start"] = int(start)
          if limit is not None:
              params["limit"] = int(limit)
          return self._service_get_request("rest/api/content", params=params, callback=callback)