import { Schedule } from "@effect/core/io/Schedule/definition";
/**
 * Returns a new schedule that deals with a narrower class of inputs than this
 * schedule.
 * @tsplus static effect/core/io/Schedule.Aspects contramap
 * @tsplus pipeable effect/core/io/Schedule contramap
 * @tsplus location "@effect/core/io/Schedule/operations/contramap"
 */
export declare function contramap<In, In2>(f: (in2: In2) => In): <State, Env_1, Out>(self: import("../definition").Schedule<State, Env_1, In, Out>) => import("../definition").Schedule<State, Env_1, In2, Out>;
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