import * as C from "../core";
/**
 * Switches to the provided stream in case this one fails with a typed error.
 *
 * See also `Stream#catchAll`.
 */
export declare function orElse_<R, R1, E, E1, A, A1>(self: C.Stream<R, E, A>, that: C.Stream<R1, E1, A1>): C.Stream<R & R1, E | E1, A | A1>;
/**
 * Switches to the provided stream in case this one fails with a typed error.
 *
 * See also `Stream#catchAll`.
 *
 * @ets_data_first orElse_
 */
export declare function orElse<R1, E1, A1>(that: C.Stream<R1, E1, A1>): <R, E, A>(self: C.Stream<R, E, A>) => C.Stream<R & R1, E1 | E, A1 | A>;
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