import type { Promise } from "./promise.js";
/**
 * Checks for completion of this Promise. Produces true if this promise has
 * already been completed with a value or an error and false otherwise.
 */
export declare function isDone<E, A>(promise: Promise<E, A>): import("../Effect/effect.js").UIO<boolean>;
//# sourceMappingURL=isDone.d.ts.map