@Override
  public @Nullable CompilerDirectHierarchyInfo getFunExpressions(@NotNull PsiNamedElement functionalInterface,
                                                                 @NotNull GlobalSearchScope searchScope,
                                                                 @NotNull FileType searchFileType) {
    return getHierarchyInfo(functionalInterface, searchScope, searchFileType, CompilerHierarchySearchType.FUNCTIONAL_EXPRESSION);
  }
@Override
  public @Nullable CompilerDirectHierarchyInfo getFunExpressions(@NotNull PsiNamedElement functionalInterface,
                                                                 @NotNull GlobalSearchScope searchScope,
                                                                 @NotNull FileType searchFileType)