import { Stream } from "@effect/core/stream/Stream/definition";
import { Channel } from "@effect/core/stream/Channel/definition/base";
import { Chunk } from "@tsplus/stdlib/collections/Chunk/definition";
/**
 * Statefully maps over the elements of this stream to produce new elements.
 * @tsplus static effect/core/stream/Stream.Aspects mapAccum
 * @tsplus pipeable effect/core/stream/Stream mapAccum
 * @tsplus location "@effect/core/stream/Stream/operations/mapAccum"
 */
export declare function mapAccum<A, S, A1>(s: S, f: (s: S, a: A) => readonly [S, A1]): <R, E>(self: import("../definition").Stream<R, E, A>) => import("../definition").Stream<R, E, A1>;
//# sourceMappingURL=mapAccum.d.ts.map