import type { ErrorSourceSpan } from "../error/shape.js";
import type { SandboxPromise, SandboxValue } from "./values.js";
export declare class SandboxPromiseRejectionTracker {
    private readonly records;
    private readonly recordsByPromise;
    observe(promise: SandboxPromise): void;
    track(promise: SandboxPromise): void;
    findUnhandledRejection(): Promise<{
        reason: SandboxValue | undefined;
        span: ErrorSourceSpan | undefined;
    } | undefined>;
}
export declare function createSandboxPromiseRejectionTracker(): SandboxPromiseRejectionTracker;
export declare function observeSandboxPromise(promise: SandboxPromise): void;
export declare function trackSandboxPromise(promise: SandboxPromise): void;
export declare function withSandboxPromiseRejectionTracker<TResult>(tracker: SandboxPromiseRejectionTracker, callback: () => TResult): TResult;