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

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

            fixture.detectChanges();

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

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

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

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

            fixture.detectChanges();

            expect(container.classList.contains(appliedClass)).toBeTruthy();
        });
        it('should not apply class on drag-over if disabled', () => {