message: Specify an error to appease the linter
diff: @@ -46,7 +46,7 @@ export default abstract class SettingsHandler {
  */
  public setValue(settingName: string, roomId: string, newValue): Promise<void> {
  console.error("Invalid operation: setValue was not overridden");
  - return Promise.reject();
  + return Promise.reject(new Error("Invalid operation: setValue was not overridden"));
  }
  /**
  