export declare class HostContext<D extends Record<string, any>> {
    static init<D extends Record<string, any>>(initialData: D): HostContext<D>;
    private parentContext?;
    private data;
    private constructor();
    private isAnyEntryDifferent;
    get<K extends keyof D>(key: K): D[K] | undefined;
    set(nextData: Partial<D>): HostContext<D>;
}