public static TomlSerializerOptions AddNewTypeConverter(this TomlSerializerOptions options) => options.AddConverter(new NewTypeConverterFactory());
public static TomlSerializerOptions AddTaggedUnionConverter(this TomlSerializerOptions options, TomlTaggedUnionOptions?taggedUnionOptions = null) => options.AddConverter(new TaggedUnionConverterFactory(taggedUnionOptions ?? TomlTaggedUnionOptions.Default));