diff --git a/src/Trait.ts b/src/Trait.ts
index 8e0d198..6d91e3b 100644
--- a/src/Trait.ts
+++ b/src/Trait.ts
@@ -1,7 +1,7 @@
-import { Fn } from "hotscript"
+import { Fn, Pipe, Tuples } from "hotscript"
 import { AbstractClass, Class, Opaque } from "type-fest"
 import { AbstractTag, TraitExpression, emptyTraitExpression } from "."
-import { StaticMembers } from "./util"
+import { ExtendFn, SimplifyFn, StaticMembers } from "./util"
 
 
 export type AddAbstractToImplClass<
@@ -104,6 +104,26 @@ export namespace Trait {
     export interface SupertraitsFn extends Fn {
         return: Trait.Supertraits<this["arg0"]>
     }
+
+    export type Class<T> = (
+        AbstractClass<
+            Trait.Instance<T>,
+            any[]
+        > &
+        Pipe<Trait.Supertraits<T>, [
+            Tuples.Map<Trait.OwnAbstractFn>,
+            ExtendFn,
+            SimplifyFn,
+        ]>
+    )
+
+    export type Instance<T> = (
+        Pipe<Trait.Supertraits<T>, [
+            Tuples.Map<Trait.OwnInstanceFn>,
+            ExtendFn,
+            SimplifyFn,
+        ]>
+    )
 }