import type { AtomicReference } from "../../support";
import type { FiberId } from "../Fiber/FiberId";
import type { State } from "./state";
export declare class XPromise<E, A> {
   readonly state: AtomicReference<State<E, A>>;
   readonly blockingOn: ReadonlyArray<FiberId>;
   constructor(state: AtomicReference<State<E, A>>, blockingOn: ReadonlyArray<FiberId>);
}
export declare const URI = "XPromise";
export declare type URI = typeof URI;
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