How to use the react-scrollbars-custom.computeScrollForOffset function in react-scrollbars-custom

it("should properly calculate values", () => {
                expect(Scrollbar.computeScrollForOffset(100, 50, 50, 200, 100)).toBe(50);
                expect(Scrollbar.computeScrollForOffset(0, 0, 0, 0, 0)).toBe(0);
            });
        });

it("should properly calculate values", () => {
                expect(Scrollbar.computeScrollForOffset(100, 50, 50, 200, 100)).toBe(50);
                expect(Scrollbar.computeScrollForOffset(0, 0, 0, 0, 0)).toBe(0);
            });
        });