f"Sleeping for {sleep_time} seconds to avoid "
        "race conditions and multiple comments"
    )
    time.sleep(sleep_time)

    # Get PR
    logging.debug(f"Processing PR: #{number}")
    pr = repo.get_pull(number)
    label_strs = {label.name for label in pr.get_labels()}
    langs = []
    for label in label_strs:
        if label.startswith("lang-") and not label == lang_all_label:
            langs.append(label[5:])

@NullUnmarked
final class UnannotatedJavaClass {
  // The Checker Framework assumes that unannotated types are non-null instead of unspecified.
  @SuppressWarnings("nullness:return.type.incompatible")
  static Object getNull() {
    return null;
  }

  private UnannotatedJavaClass() {}