import type { Branded } from '../../libs/standard-branded';
export declare type Ok<T> = Branded<{
    ok: T;
}, 'ok'>;
export declare type Failure<T> = Branded<{
    failure: T;
}, 'failure'>;
export declare type Result<OkType, FailureType> = Failure<FailureType> | Ok<OkType>;
export declare type ExtractFailure<T extends Result<unknown, unknown>> = T extends Failure<infer FailureType> ? FailureType : never;
export declare type ExtractOk<T extends Result<unknown, unknown>> = T extends Ok<infer OkType> ? OkType : never;
export declare const ok: <T>(input: T) => Ok<T>;
export declare const fail: <T>(input: T) => Failure<T>;
export declare const isOk: <OkType, FailureType>(input: Result<OkType, FailureType>) => input is Ok<OkType>;
export declare const isFailure: <OkType, FailureType>(input: Result<OkType, FailureType>) => input is Failure<FailureType>;
export declare const isResult: <OkType, FailureType>(input: unknown) => input is Result<OkType, FailureType>;