Add symbol property to routes to check instance

Author: sergeysova

lib/index.js

@@ -26,6 +26,8 @@
  * }
  */
 
+export const isCreateRestInstance = Symbol('isCreateRestInstance')
+
 /**
  * @desc Routes object
  * @typedef {object} RestRoutes Foo bar
@@ -60,7 +62,7 @@ export class Maker {
     Object.keys(this.ctx.scoped).forEach(name => {
       scoped[name] = this.ctx.scoped[name].build()
     })
-    return Object.assign({}, this.ctx, { scoped })
+    return Object.assign({}, this.ctx, { scoped, [isCreateRestInstance]: true })
   }
 
   /**