import { LazyArg } from "@tsplus/stdlib/data/Function";
import { FiberId } from "@effect/core/io/FiberId/definition";
/**
 * Returns this `FiberId` if it is not `None`, otherwise returns that `FiberId`.
 * @tsplus static effect/core/io/FiberId.Aspects getOrElse
 * @tsplus pipeable effect/core/io/FiberId getOrElse
 * @tsplus location "@effect/core/io/FiberId/operations/getOrElse"
 */
export declare function getOrElse(that: LazyArg<FiberId>): (self: FiberId) => FiberId;
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