Dart APIunself_modelAccumulatorCallback AccumulatorCallback typedef Null safety AccumulatorCallback = void Function(String name, String key, dynamic entity) Implementation typedef AccumulatorCallback = void Function( String name, String key, dynamic entity, ); unself_model unself_model AccumulatorCallback typedef unself_model library Classes Account Activity App Archive ArchiveData ArchiveSchema ArchiveSchemaPart Base Collection Edge Entity Field Flat IJsonSchema IJsonSchemaRef JsonDateTime JsonExtra JsonPart JsonRef JsonRefList JsonRefValue JsonSchema JsonString JsonVersion JsonVersionConstraint Mapping Node Ref RefList Settings SlugFrom Struct Topic Union UnionList ValueFrom Version VersionConstraint VersionRange VersionUnion ZipJsonPart Enums CollectionType FieldType Typedefs AccumulatorCallback DoCallback SchemaFinder