message: test(utils): is css var assertion
diff: @@ -14,6 +14,7 @@ import {
  isInputEvent,
  isEmpty,
  isNotEmptyObject,
  + isCssVar,
  } from "../src"
  test("is number", () => {
  @@ -83,6 +84,11 @@ test("is string", () => {
  expect(isString("1")).toBeTruthy()
  })
  +test("is css var", () => {
  + expect(isCssVar("var(--whatever-you-want)")).toBeTruthy()
  + expect(isCssVar("4")).not.toBeTruthy()
  +})
  +
  test("is input event", () => {
  expect(isInputEvent({ target: {} })).toBeTruthy()
  })
  