diff --git a/src/schema/jsonify/index.ts b/src/schema/jsonify/index.ts
index 753d3a3..6bff7ae 100644
--- a/src/schema/jsonify/index.ts
+++ b/src/schema/jsonify/index.ts
@@ -7,10 +7,10 @@ export const jsonify = {
     bigint:   jsonifyBigIntSchema,
     date:     jsonifyDateSchema,
     decimal:  jsonifyDecimalSchema,
-}
+} as const
 
 export const dejsonify = {
     bigint:   dejsonifyBigIntSchema,
     date:     dejsonifyDateSchema,
     decimal:  dejsonifyDecimalSchema,
-}
+} as const
diff --git a/src/tests.ts b/src/tests.ts
index 0f80ec8..52cc5cc 100644
--- a/src/tests.ts
+++ b/src/tests.ts
@@ -5,11 +5,13 @@ import { dejsonify, jsonify } from "./schema/jsonify"
 import { ObservableZodSchemaObject } from "./traits/ObservableZodSchemaObject"
 
 
-const newTestExp = new ZodSchemaClassBuilder(TraitExpression.NullSuperclass, [])
+const exp = new ZodSchemaClassBuilder(TraitExpression.NullSuperclass, [])
     .schema({
         schema: z.object({
-            /** Object ID */
+            /** User ID */
             id: z.bigint(),
+
+            /** Username */
             name: z.string(),
         }),
 
@@ -27,40 +29,21 @@ const newTestExp = new ZodSchemaClassBuilder(TraitExpression.NullSuperclass, [])
     .expresses(ObservableZodSchemaObject)
     .build()
 
-@newTestExp.staticImplements
-class Test extends newTestExp.extends implements Implements<typeof newTestExp> {}
+@exp.staticImplements
+class User extends exp.extends implements Implements<typeof exp> {}
 
-Test.defaultValues
-const inst = Test.create({ id: 1n, name: "" })
+User.defaultValues
+const inst = User.create({ id: 1n, name: "" })
 console.log(inst)
-Test.dejsonify({ id: 1n })
 
 
-class SubTest extends Test.extend({
+class SubTest extends User.extend({
     schema: ({ schema }) => schema.extend({
         prout: z.string()
     }),
 
-    defaultValues: defaultValues => ({
-        ...defaultValues
-    }),
+    defaultValues: v => v,
 }) {}
 
 const subInst = await SubTest.createPromise({ name: "", prout: "" })
 console.log(subInst)
-
-// class ChildTest extends Test {}
-
-// ChildTest.instantiate({ name: "" })
-
-const testSchema = { schema: Test.schema }
-
-declare const testGenericSchema: {
-    schema: z.ZodObject<z.ZodRawShape, z.UnknownKeysParam, z.ZodTypeAny, object, object>
-}
-
-type U<T> = T
-
-interface ExtendTest extends U<typeof testSchema> {
-    schema: z.ZodObject<any, any, any, any, any>
-}