import { Env } from "@tsplus/stdlib/service/Env";
import { Effect } from "@effect/core/io/Effect/definition";
import { Layer } from "@effect/core/io/Layer/definition";
/**
 * Performs the specified effect if this layer succeeds.
 * @tsplus static effect/core/io/Layer.Aspects tap
 * @tsplus pipeable effect/core/io/Layer tap
 * @tsplus location "@effect/core/io/Layer/operations/tap"
 */
export declare function tap<ROut, RIn2, E2, X>(f: (_: Env<ROut>) => Effect<RIn2, E2, X>): <RIn, E>(self: import("../definition").Layer<RIn, E, ROut>) => import("../definition").Layer<RIn2 | RIn, E2 | E, ROut>;
//# sourceMappingURL=tap.d.ts.map