Kotlin(JavaScript ) extension function to JQuery class

1

The class JQuery contain some useful functions from this library, but very small set of them. Is where a way to add other jquery functions in to JQuery class by using extension functions or something over way? The code below do not work: 

//Uncaught ReferenceError: noImpl is not defined:
   /*fun JQuery.hide(): JQuery {js.noImpl;
        return this;
    }*/



  //event.returnValue is deprecated. Please use the standard event.preventDefault() instead.

  fun JQuery.hide() : JQuery = this

upd: sorry, but i’m found solution, this works fine:

native public fun JQuery.hide() : JQuery = js.noImpl