@Contract("null, _ -> null")
  private static @Nullable Field findChildMeta(@Nullable MetaTypeProxy parentMeta, @NotNull YAMLKeyValue child) {
    if (parentMeta == null) {
      return null;
    }
    String tag = child.getKeyText().trim();
    return parentMeta.getMetaType().findFeatureByName(tag);
  }
@Contract("null, _ -> null")
  private static @Nullable Field findChildMeta(@Nullable MetaTypeProxy parentMeta, @NotNull YAMLKeyValue child)