import type { Cause } from "../../Exit/Cause";
import * as T from "../../Task/_core";
import type { XPromise } from "../model";
/**
 * Halts the promise with the specified cause, which will be propagated to all
 * fibers waiting on the value of the promise.
 */
export declare const halt: <E>(e: Cause<E>) => <A>(promise: XPromise<E, A>) => T.IO<boolean>;
//# sourceMappingURL=halt.d.ts.map