message: BaseEventIndexManager: Remove a return from a docstring.
diff: @@ -114,9 +114,6 @@ export default class BaseEventIndexManager {
  /**
  * Check if our event index is empty.
  - *
  - * @return {Promise<boolean>} A promise that will resolve to true if the
  - * event index is empty, false otherwise.
  */
  indexIsEmpty(): Promise<boolean> {
  throw new Error("Unimplemented");
  