message: EventIndex: Use the sleep method from our utils.
diff: @@ -16,6 +16,7 @@ limitations under the License.
  import PlatformPeg from "../PlatformPeg";
  import {MatrixClientPeg} from "../MatrixClientPeg";
  +import {sleep} from "../utils/promise";
  /*
  * Event indexing class that wraps the platform specific event indexing.
  @@ -180,12 +181,6 @@ export default class EventIndex {
  }
  async crawlerFunc() {
  - // TODO either put this in a better place or find a library provided
  - // method that does this.
  - const sleep = async (ms) => {
  - return new Promise(resolve => setTimeout(resolve, ms));
  - };
  -
  let cancelled = false;
  console.log("EventIndex: Started crawler function");
  