public static <T extends PsiFileSystemItem> List<FileReferenceHelper> getHelpers(final @NotNull T psiFileSystemItem) {
    final VirtualFile file = psiFileSystemItem.getVirtualFile();
    if (file == null) return null;
    final Project project = psiFileSystemItem.getProject();
    return ContainerUtil.findAll(getHelpers(), fileReferenceHelper -> fileReferenceHelper.isMine(project, file));
  }
public static <T extends PsiFileSystemItem> List<FileReferenceHelper> getHelpers(final @NotNull T psiFileSystemItem)