import { AbstractType } from "./AbstractType";
import { conversion, Req, scalar } from "@huz-com/types";
import { RichTextTypeOption } from "./index.interfaces";
declare type T = scalar.RichText;
declare type O = RichTextTypeOption;
export declare class RichTextType extends AbstractType<T, O> {
    protected static _ins: RichTextType;
    /**
     * Returns skeleton instance
     * */
    static ins(): RichTextType;
    constructor();
    /**
     * Checks is description?
     */
    is(value: scalar.Unknown, opt?: O, req?: Req): boolean;
    protected _option(opt?: O): conversion.CastBase | O;
    /**
     * Converts a value to description
     */
    cast(value: scalar.Unknown, opt?: O, req?: Req): T | null;
}
export {};