export declare const BOOTSTRAP_STATE: unique symbol;
export type TBootstrapTarget = Record<string | symbol, unknown> & {
    [BOOTSTRAP_STATE]?: Set<string>;
};
export declare function ensureBootstrap(target: TBootstrapTarget, key: string): boolean;
export declare function syncLegacyRenderersToApp(app: any): void;
export declare function syncLegacyPickersToApp(app: any, pickerContribution: symbol): void;