docs: def get_space_information(self, space_key, expand=None, callback=None):
          """
          Returns information about a space.
          :param space_key (string): A string containing the key of the space.
          :param expand (string): OPTIONAL: A comma separated list of properties to expand on the space. Default: Empty.
          :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 space/{spaceKey} endpoint,
                   or the results of the callback. Will raise requests.HTTPError on bad input, potentially.
          """
          params = {}
          if expand:
              params["expand"] = expand
          return self._service_get_request("rest/api/space/{key}".format(key=space_key),
                                           params=params, callback=callback)