import { STM } from "@effect/core/stm/STM/definition/base";
import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
import { TSet } from "@effect/core/stm/TSet/definition";
/**
 * Transactionally takes the first matching value, or retries until there is one.
 * @tsplus static effect/core/stm/TSet.Aspects takeFirstSTM
 * @tsplus pipeable effect/core/stm/TSet takeFirstSTM
 * @tsplus location "@effect/core/stm/TSet/operations/takeFirstSTM"
 */
export declare function takeFirstSTM<A, R, E, B>(pf: (a: A) => STM<R, Maybe<E>, B>): (self: TSet<A>) => STM<R, E, B>;
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