import { Schema, type ISchemaOptions, type StrictOptions } from "../schema/schema";
export interface IStringOptions extends ISchemaOptions {
    maxLength?: number;
    minLength?: number;
    pattern?: string | RegExp;
    format?: string;
}
export declare class StringSchema<const O extends IStringOptions = IStringOptions> extends Schema<O, string> {
    readonly type = "string";
    constructor(o?: O);
    toJSON(): any;
}
export declare const string: <const O extends IStringOptions>(o?: StrictOptions<IStringOptions, O>) => StringSchema<O> & O;
export declare const string1: <const O extends IStringOptions>(o?: StrictOptions<IStringOptions, O>) => Schema<O, string> & O;
export declare const string2: <const O extends IStringOptions>(o?: StrictOptions<IStringOptions, O>) => Schema<O, string> & O;