import { Box } from "./box";
import { DefaultOrFunc } from "./fn";
import { Voidable } from "./maybe";
/** Optional values
 * @deprecated
*/
export declare class Option<T> implements Box<Voidable<T>> {
    #private;
    val: Voidable<T>;
    private constructor();
    get has(): boolean;
    toString(): string;
    map<R>(f: (val: T) => R): Option<R>;
    then<R>(f: (val: T) => Option<R>): Option<R>;
    or(other: DefaultOrFunc<Option<T>>): Option<T>;
    xor(other: Option<T>): Option<T>;
    and<U>(other: Option<U>): Option<U>;
    take(): Option<T>;
    static some<T>(value: T): Option<T>;
    static none<T>(): Option<T>;
    static None: Option<any>;
}