import { Sink } from "@effect/core/stream/Sink/definition/base";
/**
 * A sink that folds its inputs with the provided function and initial state.
 * @tsplus static effect/core/stream/Sink.Ops foldLeft
 * @tsplus location "@effect/core/stream/Sink/operations/foldLeft"
 */
export declare function foldLeft<In, S>(z: S, f: (s: S, input: In) => S): Sink<never, never, In, never, S>;
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