declare module "ext:core/ops" {
  export function op_test_config(): { filter: string | null; noRun: boolean };
  export interface TestEvent {
    kind: "start" | "done" | "pass" | "fail" | "ignore" | "filtered" | "found";
    name?: string;
    depth?: number;
    elapsedMs?: number;
    text?: string;
    timeoutMs?: number | null;
  }
  export function op_test_event(event: TestEvent): null;
}