@Override
      public @Nullable ListSeparator getSeparatorAbove(ScopeDescriptor value) {
        var separator = separators.get(value);
        if (separator != null) {
          return new ListSeparator(separator.getDisplayName());
        }
        return null;
      }
@Override
      public @Nullable ListSeparator getSeparatorAbove(ScopeDescriptor value)