import type { Option } from "../../../Option";
import * as T from "../../Task/_core";
import type { XPromise } from "../model";
/**
 * Checks for completion of this Promise. Returns the result effect if this
 * promise has already been completed or a `None` otherwise.
 */
export declare const poll: <E, A>(promise: XPromise<E, A>) => T.IO<Option<T.EIO<E, A>>>;
//# sourceMappingURL=poll.d.ts.map