@Nullable
  private static String getHelpId(@NotNull List<? extends CommitExecutor> executors) {
    return StreamEx.of(executors).select(HelpIdProvider.class).map(HelpIdProvider::getHelpId).nonNull().findFirst().orElse(null);
  }
@Nullable
  private static String getHelpId(@NotNull List<? extends CommitExecutor> executors)