private static @NotNull String getImplementationTooltip(@NotNull Collection<? extends PsiElement> elements, @NotNull String prefix) {
    return GutterTooltipHelper.getTooltipText(elements, prefix, true, IdeActions.ACTION_GOTO_IMPLEMENTATION);
  }
private static @NotNull String getImplementationTooltip(@NotNull Collection<? extends PsiElement> elements, @NotNull String prefix)