diff --git a/angel_serialize/lib/angel_serialize.dart b/angel_serialize/lib/angel_serialize.dart
index 03a6e0cc..90d3733c 100644
--- a/angel_serialize/lib/angel_serialize.dart
+++ b/angel_serialize/lib/angel_serialize.dart
@@ -7,13 +7,37 @@ const Exclude exclude = const Exclude();
 
 /// Marks a class as eligible for serialization.
 class Serializable {
-  const Serializable();
+  const Serializable(
+      {this.serializers: const [Serializers.MAP, Serializers.JSON],
+      this.autoSnakeCaseNames: true,
+      this.autoIdAndDateFields: true});
+
+  /// A list of enabled serialization modes.
+  ///
+  /// See [Serializers].
+  final List<int> serializers;
+
+  /// Overrides the setting in `SerializerGenerator`.
+  final bool autoSnakeCaseNames;
+
+  /// Overrides the setting in `JsonModelGenerator`.
+  final bool autoIdAndDateFields;
 }
 
 const Serializable serializable = const Serializable();
 
+/// The supported serialization types.
+abstract class Serializers {
+  /// Enable `fromMap` and `toMap` methods on the model class.
+  static const int MAP = 0;
+
+  /// Enable a `toJson` method on the model class.
+  static const int JSON = 1;
+}
+
 /// Specifies an alias for a field within its JSON representation.
 class Alias {
   final String name;
+
   const Alias(this.name);
-}
\ No newline at end of file
+}
diff --git a/angel_serialize_generator/lib/build_context.dart b/angel_serialize_generator/lib/build_context.dart
index 5400747d..76ccabf4 100644
--- a/angel_serialize_generator/lib/build_context.dart
+++ b/angel_serialize_generator/lib/build_context.dart
@@ -19,7 +19,7 @@ const TypeChecker serializableTypeChecker =
 /// Create a [BuildContext].
 Future<BuildContext> buildContext(
     ClassElement clazz,
-    Serializable annotation,
+    ConstantReader annotation,
     BuildStep buildStep,
     Resolver resolver,
     bool autoSnakeCaseNames,
@@ -57,6 +57,10 @@ Future<BuildContext> buildContext(
     }
   }
 
+  // Check for autoIdAndDateFields, autoSnakeCaseNames
+  autoIdAndDateFields = annotation.peek('autoIdAndDateFields')?.boolValue ?? autoIdAndDateFields;
+  autoSnakeCaseNames = annotation.peek('autoSnakeCaseNames')?.boolValue ?? autoSnakeCaseNames;
+
   if (autoIdAndDateFields != false) {
     if (!fieldNames.contains('id')) {
       var idField =
diff --git a/angel_serialize_generator/lib/context.dart b/angel_serialize_generator/lib/context.dart
index b5c99268..afa9f5f6 100644
--- a/angel_serialize_generator/lib/context.dart
+++ b/angel_serialize_generator/lib/context.dart
@@ -2,6 +2,7 @@ import 'package:analyzer/dart/element/element.dart';
 import 'package:angel_serialize/angel_serialize.dart';
 import 'package:code_builder/code_builder.dart';
 import 'package:recase/recase.dart';
+import 'package:source_gen/source_gen.dart';
 
 /// A base context for building serializable classes.
 class BuildContext {
@@ -22,7 +23,7 @@ class BuildContext {
   /// The fields declared on the original class.
   final List<FieldElement> fields = [];
 
-  final Serializable annotation;
+  final ConstantReader annotation;
 
   /// The name of the field that identifies data of this model type.
   String primaryKeyName = 'id';
diff --git a/angel_serialize_generator/lib/model.dart b/angel_serialize_generator/lib/model.dart
index f0f599c5..ed7e9b1d 100644
--- a/angel_serialize_generator/lib/model.dart
+++ b/angel_serialize_generator/lib/model.dart
@@ -1,25 +1,18 @@
 part of angel_serialize_generator;
 
 class JsonModelGenerator extends GeneratorForAnnotation<Serializable> {
-  final bool autoSnakeCaseNames;
   final bool autoIdAndDateFields;
 
-  const JsonModelGenerator(
-      {this.autoSnakeCaseNames: true, this.autoIdAndDateFields: true});
+  const JsonModelGenerator({this.autoIdAndDateFields: true});
 
   @override
   Future<String> generateForAnnotatedElement(
-      Element element, ConstantReader reader, BuildStep buildStep) async {
+      Element element, ConstantReader annotation, BuildStep buildStep) async {
     if (element.kind != ElementKind.CLASS)
       throw 'Only classes can be annotated with a @Serializable() annotation.';
 
-    var ctx = await buildContext(
-        element,
-        serializable,
-        buildStep,
-        await buildStep.resolver,
-        autoSnakeCaseNames != false,
-        autoIdAndDateFields != false);
+    var ctx = await buildContext(element, annotation, buildStep,
+        await buildStep.resolver, true, autoIdAndDateFields != false);
 
     var lib = new File((b) {
       generateClass(ctx, b);