docs: def get_content_comments(self, content_id, expand=None, parent_version=None, start=None, limit=None,
                               location=None, depth=None, callback=None):
          """
          Returns the comments associated with a piece of content.
          :param content_id (string): A string containing the id of the content to retrieve children for.
          :param expand (string): OPTIONAL: a comma separated list of properties to expand on the children.
                                  We can also specify some extensions such as extensions.inlineProperties (for getting
                                  inline comment-specific properties) or extensions.resolution for the resolution status
                                  of each comment in the results. Default: Empty
          :param parent_version (int): OPTIONAL: An int representing the version of the content to retrieve children for.
                                       Default: 0
          :param start (int): OPTIONAL: The index of the first item within the result set that should be returned.
                              Default: 0.
          :param limit (int): OPTIONAL: How many items should be returned after the start index. Default: Site limit.
          :param location (string): OPTIONAL: The location of the comments. Possible values are: "inline", "footer",
                                    "resolved". You can define multiple location params. The results will be the comments
                                    matched by any location. Default: "" (all).
          :param depth: The depth of the comments. Possible values are: "" (ROOT only), "all". Default: "".
          :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/{id}/child/comment endpoint, or the results of the
                   callback. Will raise requests.HTTPError on bad input, potentially.
          """
          params = {}
          if expand:
              params["expand"] = expand
          if parent_version:
              params["parentVersion"] = parent_version
          if start is not None:
              params["start"] = int(start)
          if limit is not None:
              params["limit"] = int(limit)
          if location:
              params["location"] = location
          if depth:
              assert depth in {"", "all"}
              params["depth"] = depth
          return self._service_get_request("rest/api/content/{id}/child/comment".format(id=content_id),
                                           params=params, callback=callback)