Function assertIsError

packages/angular/cli/src/utilities/error.ts:37–42

(value: unknown)

 * @param value The value to check.
 */
export function assertIsError(value: unknown): asserts value is Error & { code?: string } {
  assert(
    isError(value),
    `Expected a value to be an Error-like object, but received: ${inspect(value)}`,
  );
}