How to use the @esfx/collection-core.ReadonlyCollection.hasInstance function in @esfx/collection-core

it("hasInstance", () => {
            expect(ReadonlyCollection.hasInstance([])).toBe(true);
        });
        it("size", () => {

it("hasInstance", () => {
                expect(ReadonlyCollection.hasInstance(new TypedArray())).toBe(true);
            });
            it("size", () => {

it("hasInstance", () => {
            expect(ReadonlyCollection.hasInstance(new Set())).toBe(true);
        });
        it("size", () => {