code: func ElementsMatchf(t TestingT, listA interface{}, listB interface{}, msg string, args ...interface{}) {
  	if h, ok := t.(tHelper); ok {
  		h.Helper()
  	}
  	if assert.ElementsMatchf(t, listA, listB, msg, args...) {
  		return
  	}
  	t.FailNow()
  }
docs: // ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
  // listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
  // the number of appearances of each of them in both lists should match.
  //
  // assert.ElementsMatchf(t, [1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")