import type { RuntimeConstructor } from 'artplayer-tool-iframe' import type Public from 'artplayer-tool-iframe' import Implementation from '../../packages/artplayer-tool-iframe/src/index' // @ts-expect-error Historical callback is non-null; actual runtime permits null. Keep this legacy mismatch explicit. const oldView: typeof Public = Implementation const actualView: RuntimeConstructor = Implementation void [oldView, actualView]