export type StringMaskToken = {
    mask: string;
    matchValue: (char: string) => boolean;
};
export declare const applyStringMask: (mask: string, value: string) => string;
export declare const unmaskString: (mask: string, value: string) => string;
export declare const maskedStringIsValid: (mask: string, maskedString: string) => boolean;
declare const _default: (mask: string, value: string) => [string, boolean];
export default _default;