import { MaskTokens } from './tokens';
export type MaskType = string | string[] | ((input: string) => string) | null;
interface MaskNumber {
    locale?: string;
    fraction?: number;
    unsigned?: boolean;
}
type ConvertType = StringConstructor | NumberConstructor | BigIntConstructor | ((value: string) => Partial<string | number | bigint>);
export interface MaskOptions {
    mask?: MaskType;
    convert?: ConvertType;
    convertWhenCompleted?: boolean;
    marker?: string;
    tokens?: MaskTokens;
    tokensReplace?: boolean;
    eager?: boolean;
    reversed?: boolean;
    number?: MaskNumber;
}
export declare class Mask {
    readonly opts: MaskOptions;
    private readonly memo;
    constructor(defaults?: MaskOptions);
    masked(value: string): string;
    unmasked(value: string): string;
    converted(value: string): string | number | bigint;
    isEager(): boolean;
    isReversed(): boolean;
    completed(value: string): boolean;
    findMask(value: string): string | null;
    escapeMask(maskRaw: string): {
        mask: string;
        escaped: number[];
    };
    private process;
    private processMarker;
}
export {};