Added SubstituteOf as as return type from Substitute.for

dist/src/Substitute.d.ts

@@ -1,7 +1,8 @@
 import { ObjectSubstitute, OmitProxyMethods, DisabledSubstituteObject } from "./Transformations";
 export declare const HandlerKey: unique symbol;
 export declare const AreProxiesDisabledKey: unique symbol;
+export declare type SubstituteOf<T extends Object> = ObjectSubstitute<OmitProxyMethods<T>, T> & T;
 export declare class Substitute {
-    static for<T>(): ObjectSubstitute<OmitProxyMethods<T>, T> & T;
+    static for<T>(): SubstituteOf<T>;
     static disableFor<T extends ObjectSubstitute<OmitProxyMethods<any>>>(substitute: T): DisabledSubstituteObject<T>;
 }