/**
 * Navigation Detector Strategy
 *
 * Collects out/in navigation events and provides navigation pairs.
 * OUT and IN can arrive in any order.
 */
export type NavigationPair = {
    from: string;
    to: string;
};
export interface NavigationDetector {
    /**
     * Trigger navigation event
     */
    trigger(path: string, type: "out" | "in"): void;
    /**
     * Get navigation pair when ready
     * Returns null if a pending transition is cancelled.
     */
    get(type: "out" | "in"): Promise<NavigationPair | null>;
}
export type CreateNavigationDetector = () => NavigationDetector;
/**
 * Navigation detector
 *
 * OUT and IN can arrive in any order.
 * - Either OUT or IN can arrive first
 * - Both wait indefinitely for the other to complete the pair
 * - If a new path arrives, cancels the previous pending transition
 */
export declare function createNavigationDetector(): NavigationDetector;
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