export declare abstract class Result<T, E> {
    protected readonly value: T | E;
    constructor(value: T | E);
    isSuccess(): boolean;
    isFail(): boolean;
    getSuccess(): T;
    getFail(): E;
}
export declare class Success<T, E> extends Result<T, E> {
    constructor(value: T);
}
export declare class Fail<T, E> extends Result<T, E> {
    constructor(value: E);
}