import { BaseController } from "@stimulus-library/utilities";
export declare class TurboFrameRCController extends BaseController {
    static values: {
        frameId: StringConstructor;
        src: StringConstructor;
        loadingMessage: StringConstructor;
    };
    readonly frameIdValue: string;
    readonly srcValue: string;
    readonly hasSrcValue: boolean;
    readonly loadingMessageValue: string;
    readonly hasLoadingMessageValue: boolean;
    toggle(event?: Event): void;
    setSrc(event?: Event): void;
    clear(event?: Event): void;
    private _setSrc;
    private _clear;
    private _getFrame;
    private _getSrc;
}