fix export

src/def/interfaces.ts

@@ -71,7 +71,7 @@ type ClassesToTypes<A extends any[]> = A extends [infer L, ...infer R]
 */
 type FusionClassType<A extends AnyClass[]> = Intersecton<ClassesToTypes<A>>;
 
-type PartialDeep<T> = T extends
+export type PartialDeep<T> = T extends
   | string
   | number
   | bigint