import { Collection } from "@tsplus/stdlib/collections/Collection/definition";
import { Predicate } from "@tsplus/stdlib/data/Predicate";
import { Effect } from "@effect/core/io/Effect/definition";
/**
 * Folds over the elements in this chunk from the left.
 * Stops the fold early when the condition is not fulfilled.
 * @tsplus static effect/core/io/Effect.Ops reduceWhile
 * @tsplus location "@effect/core/io/Effect/operations/reduceWhile"
 */
export declare function reduceWhile<A, R, E, S>(self: Collection<A>, s: S, p: Predicate<S>, f: (s: S, a: A) => Effect<R, E, S>): Effect<R, E, S>;
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