import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
import { TArray } from "@effect/core/stm/TArray/definition";
import { STM } from "@effect/core/stm/STM/definition/base";
/**
 * Finds the result of applying a partial function to the first value in its
 * domain.
 * @tsplus static effect/core/stm/TArray.Aspects collectFirst
 * @tsplus pipeable effect/core/stm/TArray collectFirst
 * @tsplus location "@effect/core/stm/TArray/operations/collectFirst"
 */
export declare function collectFirst<A, B>(pf: (a: A) => Maybe<B>): (self: TArray<A>) => STM<never, never, Maybe<B>>;
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