/** Private acquisition and callback boundary for independently mounted units. */
export declare function reportFailure(error: unknown): void;
export declare function lifetime(): {
    readonly stopped: boolean;
    defer(release: () => void): void;
    stop: () => void;
    guard<A extends unknown[]>(fn: (...args: A) => void): (...args: A) => void;
    setup(fn: () => void): void;
};
/** Restore only our last write. A later author write becomes the new baseline. */
export declare function ownership(): {
    restore: (node?: object, key?: string) => void;
    style(el: HTMLElement, key: string, value: string, priority?: string): void;
    class(el: HTMLElement, key: string, value: boolean): void;
    attr(el: HTMLElement, key: string, value: string | null): void;
    property<T extends object, K extends keyof T>(el: T, key: K, value: T[K]): void;
};