protected void validateMultiplicity(@NotNull YamlMetaTypeProvider.MetaTypeProxy meta, @NotNull YAMLValue value) {
      if (meta.getField().isMany()) {
        requireMultiplicityMany(meta, value);
      }
      else {
        requireMultiplicityOne(meta, value);
      }
    }
protected void validateMultiplicity(@NotNull YamlMetaTypeProvider.MetaTypeProxy meta, @NotNull YAMLValue value)