import { Effect } from "@effect/core/io/Effect/definition";
/**
 * Returns whether this effect is a failure.
 * @tsplus getter effect/core/io/Effect isFailure
 * @tsplus location "@effect/core/io/Effect/operations/isFailure"
 */
export declare function isFailure<R, E, A>(self: Effect<R, E, A>): Effect<R, never, boolean>;
//# sourceMappingURL=isFailure.d.ts.map