@NotNull
  Collection<? extends GenericContentEntityIterator> createGenericContentIterators(@NotNull EntityPointer<E> reference,
                                                                                   @NotNull Collection<? extends VirtualFile> roots,
                                                                                   @Nullable D customization);
@NotNull
  Collection<? extends GenericContentEntityIterator> createGenericContentIterators(@NotNull EntityPointer<E> reference,
                                                                                   @NotNull Collection<? extends VirtualFile> roots,
                                                                                   @Nullable D customization)