import { Either } from "@tsplus/stdlib/data/Either/definition";
import { Effect } from "@effect/core/io/Effect/definition";
/**
 * Returns an effect that effectfully "peeks" at the result of this effect.
 * @tsplus static effect/core/io/Effect.Aspects tapEither
 * @tsplus pipeable effect/core/io/Effect tapEither
 * @tsplus location "@effect/core/io/Effect/operations/tapEither"
 */
export declare function tapEither<E, A, R2, E2, X>(f: (either: Either<E, A>) => Effect<R2, E2, X>): <R>(self: import("../definition").Effect<R, E, A>) => import("../definition").Effect<R2 | R, E | E2, A>;
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