/**
 * @template T, E
 */
export class Result<T, E> {
    /**
     * @template T
     * @param {T} value
     */
    static ok<T_1>(value: T_1): Ok<T_1, any>;
    /**
     * @template E
     * @param {E} error
     */
    static err<E_1>(error: E_1): Err<any, E_1>;
    static chain(fn: any, self: any): any;
    static map(fn: any, self: any): any;
    static alt(other: any, self: any): any;
    static equals(other: any, self: any): any;
    static lte(other: any, self: any): any;
    /**
     * @returns {this is Ok<T, E>}
     */
    isOk(): this is Ok<T, E>;
    /**
     * @returns {this is Err<T, E>}
     */
    isErr(): this is Err<T, E>;
}
/** @template T, E */
export class Ok<T, E> extends Result<any, any> {
    /** @param {T} value */
    constructor(value: T);
    /**
     * @returns {this is Ok<T, E>}
     */
    isOk(): this is Ok<T, E>;
    /**
     * @returns {this is Err<T, E>}
     */
    isErr(): this is Err<T, E>;
    /**
     * @template {Result<T, E>} R
     * @param {(value: T) => R} fn
     * @returns {R}
     */
    andThen<R extends Result<T, E>>(fn: (value: T) => R): R;
    /**
     * @template V
     * @template {Result<V, E>} R
     * @param {(value: T) => V} fn
     * @returns {R}
     */
    map<V, R extends Result<V, E>>(fn: (value: T) => V): R;
    /**
     * @template V
     * @param {V}  _defaultValue
     * @param {(value: T) => V} fn
     * @returns {V}
     */
    mapOr<V>(_defaultValue: V, fn: (value: T) => V): V;
    /**
     * @param {Result<T, E>} other
     * @returns {Result<T, E>}
     */
    and(other: Result<T, E>): Result<T, E>;
    /**
     * @param {Result<T, E>} _other
     * @returns {Result<T, E>}
     */
    or(_other: Result<T, E>): Result<T, E>;
    /**
     * @template F
     * @param {(error: E) => Result<T, F>} _fn
     * @returns {Result<T, F>}
     */
    orElse<F>(_fn: (error: E) => Result<T, F>): Result<T, F>;
    /**
     * @param {Result<T, E>} other
     * @returns {boolean}
     */
    equals(other: Result<T, E>): boolean;
    /**
     * @param {Result<T, E>} other
     * @returns {boolean}
     */
    lte(other: Result<T, E>): boolean;
    /**
     * @template [V=T]
     * @param {(acc: V, value: T) => V} reducer
     * @param {V} init
     * @returns {V}
     */
    reduce<V = T>(reducer: (acc: V, value: T) => V, init: V): V;
    /**
     * @template {Result<T, E>} R
     * @returns {R}
     */
    flatten<R extends Result<T, E>>(): R;
    /**
     * @returns {Option<T>}
     */
    ok(): Option<T>;
    /**
     * @returns {Option<T>}
     */
    err(): Option<T>;
    /**
     * @param {(value: T) => void} fn
     * @returns {this}
     */
    inspect(fn: (value: T) => void): this;
    /**
     * @returns {T}
     * @throws {UnwrapError}
     */
    unwrap(): T;
    /**
     * @returns {E}
     * @throws {UnwrapError}
     */
    unwrapErr(): E;
    /**
     * @param {T} _value
     * @returns {T}
     */
    unwrapOr(_value: T): T;
    /**
     * @param {() => T} _fn
     * @returns {T}
     */
    unwrapOrElse(_fn: () => T): T;
    #private;
}
/** @template T, E */
export class Err<T, E> extends Result<any, any> {
    /** @param {E} error */
    constructor(error: E);
    /**
     * @returns {this is Ok<T, E>}
     */
    isOk(): this is Ok<T, E>;
    /**
     * @returns {this is Err<T, E>}
     */
    isErr(): this is Err<T, E>;
    /**
     * @template {Result<T, E>} R
     * @param {(value: T) => R} _fn
     * @returns {R}
     */
    andThen<R extends Result<T, E>>(_fn: (value: T) => R): R;
    /**
     * @template V
     * @template {Result<V, E>} R
     * @param {(value: T) => V} _fn
     * @returns {R}
     */
    map<V, R extends Result<V, E>>(_fn: (value: T) => V): R;
    /**
     * @template V
     * @param {V} defaultValue
     * @param {(value: T) => V} _fn
     * @returns {V}
     */
    mapOr<V>(defaultValue: V, _fn: (value: T) => V): V;
    /**
     * @template V
     * @param {() => V} defaultFn
     * @param {(value: T) => V} _fn
     * @returns {V}
     */
    mapOrElse<V>(defaultFn: () => V, _fn: (value: T) => V): V;
    /**
     * @template T
     * @param {Result<T, E>} _other
     * @returns {Result<T, E>}
     */
    and<T_1>(_other: Result<T_1, E>): Result<T_1, E>;
    /**
     * @template T
     * @param {Result<T, E>} other
     * @returns {Result<T, E>}
     */
    or<T_1>(other: Result<T_1, E>): Result<T_1, E>;
    /**
     * @template T, F
     * @param {(error: E) => Result<T, F>} fn
     * @returns {Result<T, F>}
     */
    orElse<T_1, F>(fn: (error: E) => Result<T_1, F>): Result<T_1, F>;
    /**
     * @template T
     * @param {Result<T, E>} other
     * @returns {boolean}
     */
    equals<T_1>(other: Result<T_1, E>): boolean;
    /**
     * @template T
     * @param {Result<T, E>} other
     * @returns {boolean}
     */
    lte<T_1>(other: Result<T_1, E>): boolean;
    /**
     * @template [V=T]
     * @param {(acc: V, value: T) => V} _reducer
     * @param {V} init
     * @returns {V}
     */
    reduce<V = T>(_reducer: (acc: V, value: T) => V, init: V): V;
    /**
     * @template {Result<T, E>} R
     * @returns {R}
     */
    flatten<R extends Result<T, E>>(): R;
    /**
     * @returns {Option<T>}
     */
    ok(): Option<T>;
    /**
     * @returns {Option<T>}
     */
    err(): Option<T>;
    /**
     * @template T
     * @param {(value: T) => void} _fn
     * @returns {this}
     */
    inspect<T_1>(_fn: (value: T_1) => void): this;
    /**
     * @template T
     * @returns {T}
     * @throws {UnwrapError}
     */
    unwrap<T_1>(): T_1;
    /**
     * @returns {E}
     * @throws {UnwrapError}
     */
    unwrapErr(): E;
    /**
     * @param {T} value
     * @returns {T}
     */
    unwrapOr(value: T): T;
    /**
     * @template T
     * @param {() => T} fn
     * @returns {T}
     */
    unwrapOrElse<T_1>(fn: () => T_1): T_1;
    #private;
}
import { Option } from './option.js';
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