import { TMap } from "@effect/core/stm/TMap/definition";
import { USTM } from "@effect/core/stm/STM/definition/base";
/**
 * Tests whether or not map contains a key.
 * @tsplus fluent ets/TMap contains
 * @tsplus location "@effect/core/stm/TMap/operations/contains"
 */
export declare function contains_<K, V>(self: TMap<K, V>, k: K): USTM<boolean>;
/**
 * Tests whether or not map contains a key.
 * @tsplus static ets/TMap/Aspects contains
 * @tsplus pipeable ets/TMap contains
 * @tsplus location "@effect/core/stm/TMap/operations/contains"
 */
export declare const contains: <K>(k: K) => <V>(self: import("../definition").TMap<K, V>) => import("../../STM").USTM<boolean>;
//# sourceMappingURL=contains.d.ts.map