import heroTheme from '../themes/hero';
import legacyTheme from '../themes/legacy';
// https://stackoverflow.com/questions/53807517/how-to-test-if-two-types-are-exactly-the-same
/**
 * Tests if two types are equal
 */
type IfEquals<T, U, Y = unknown, N = never> = (<G>() => G extends T ? 1 : 2) extends <G>() => G extends U ? 1 : 2
  ? Y
  : N;

/*eslint-disable-next-line */
let exactType: (<T, U>(draft: T & IfEquals<T, U>, expected: U & IfEquals<T, U>) => IfEquals<T, U>) | undefined;

if (exactType) {
  //if Hero_Theme is not match to Legacy_Theme, the compile shows error
  exactType(heroTheme, legacyTheme); // error
}