/**
 * Interface for managing view restoration state to prevent early access to an inconsistent view
 * or concurrent restoration by another process.
 */
export interface IViewLocker {
    /**
     * Indicates whether the view is fully restored and ready to accept new event projections.
     */
    ready: boolean;
    /**
     * Locks the view to prevent external read/write operations.
     *
     * @returns `true` if the lock is successfully acquired, `false` otherwise.
     */
    lock(): Promise<boolean> | boolean;
    /**
     * Unlocks the view, allowing external read/write operations to resume.
     */
    unlock(): Promise<void> | void;
    /**
     * Waits until the view is fully restored and ready to accept new events.
     *
     * @param eventType The event type to listen for (`"ready"`).
     * @returns A promise that resolves when the view is ready.
     */
    once(eventType: 'ready'): Promise<void>;
}
/**
 * Checks if a given object conforms to the `IViewLocker` interface.
 *
 * @param view The object to check.
 * @returns `true` if the object implements `IViewLocker`, `false` otherwise.
 */
export declare const isViewLocker: (view: unknown) => view is IViewLocker;