import { STM } from "@effect/core/stm/STM/definition/base";
import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
/**
 * Requires the option produced by this value to be `None`.
 * @tsplus getter effect/core/stm/STM noneOrFail
 * @tsplus location "@effect/core/stm/STM/operations/noneOrFail"
 */
export declare function noneOrFail<R, E, A, B>(self: STM<R, E, Maybe<A>>): STM<R, Maybe<E>, void>;
//# sourceMappingURL=noneOrFail.d.ts.map