How to use the @uipath/angular/testing.EventGenerator.dragLeave function in @uipath/angular

it('should remove class on drag-leave', () => {
            container.dispatchEvent(EventGenerator.dragOver);

            fixture.detectChanges();

            expect(container.classList.contains(appliedClass)).toBeTruthy();

            container.dispatchEvent(EventGenerator.dragLeave);
            fixture.detectChanges();

            expect(container.classList.contains(appliedClass)).toBeFalsy();
        });