Merge branch 'model-cast-bug' (#14)

Fixes #20

Author: louy

index.d.ts

@@ -3578,7 +3578,7 @@ declare module sequelize {
      * @return Model A reference to the model, with the scope(s) applied. Calling scope again on the returned
      *     model will clear the previous scope.
      */
-    scope(options?: string | Array<string> | ScopeOptions | WhereOptions): this;
+    scope(options?: string | Array<string> | ScopeOptions | WhereOptions): Model<TInstance, TAttributes>;
 
     /**
      * Search for multiple instances.

test/cast.ts

@@ -0,0 +1,12 @@
+import {Model, Instance, Connection} from 'sequelize';
+
+let sequelize: Connection;
+
+interface Thing {
+  id?: number;
+}
+interface ThingInstance extends Instance<ThingInstance, Thing> {
+  id: number;
+}
+let Thing: Model<ThingInstance, Thing> = sequelize.define<ThingInstance, Thing>('thing', {});
+Thing = sequelize.model<ThingInstance, Thing>('thing');

test/tsconfig.json

@@ -8,6 +8,7 @@
   ],
   "files": [
     "../dist/index.d.ts",
+    "./cast.ts",
     "./promise.ts",
     "./test.ts"
   ],