import { STM } from "@effect/core/stm/STM/definition/base";
import { TSet } from "@effect/core/stm/TSet/definition";
/**
 * Atomically folds using a transactional function.
 * @tsplus static effect/core/stm/TSet.Aspects foldSTM
 * @tsplus pipeable effect/core/stm/TSet foldSTM
 * @tsplus location "@effect/core/stm/TSet/operations/foldSTM"
 */
export declare function foldSTM<B, A, R, E>(zero: B, op: (acc: B, a: A) => STM<R, E, B>): (self: TSet<A>) => STM<R, E, B>;
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