export interface Loading {
    loading: true;
    failed: false;
    success: false;
}
export interface Failed<E> {
    loading: false;
    failed: true;
    success: false;
    error: E;
}
export interface Success<T> {
    loading: false;
    failed: false;
    success: true;
    value: T;
}
export declare type Loadable<T, E = any> = Readonly<(Loading | Failed<E> | Success<T>)>;
export declare function loading(): Loading;
export declare function success<T>(value: T): Success<T>;
export declare function failed<E>(error: E): Failed<E>;
export declare const LOADING: Loading;