/**
 * BigCrunchInterstitial - API for interstitial ads
 */
import type { InterstitialAd, AdRequestOptions, AdEvent, AdEventListener, EventSubscription } from './types';
/**
 * Static API for BigCrunch interstitial ads
 *
 * @example
 * ```typescript
 * // Load an interstitial
 * await BigCrunchInterstitial.load({ placementId: 'interstitial-level-complete' });
 *
 * // Show when ready
 * if (await BigCrunchInterstitial.isLoaded('interstitial-level-complete')) {
 *   await BigCrunchInterstitial.show('interstitial-level-complete');
 * }
 * ```
 */
export declare class BigCrunchInterstitial {
    private static instances;
    /**
     * Load an interstitial ad
     *
     * @param options - Ad request options including placementId
     */
    static load(options: AdRequestOptions): Promise<void>;
    /**
     * Show a loaded interstitial ad
     *
     * @param placementId - The placement ID of the ad to show
     */
    static show(placementId: string): Promise<void>;
    /**
     * Check if an interstitial is loaded and ready to show
     *
     * @param placementId - The placement ID to check
     */
    static isLoaded(placementId: string): Promise<boolean>;
    /**
     * Destroy an interstitial instance
     *
     * @param placementId - The placement ID of the ad to destroy
     */
    static destroy(placementId: string): void;
    /**
     * Destroy all interstitial instances
     */
    static destroyAll(): void;
    /**
     * Create an interstitial ad instance
     * Alternative to static methods for more control
     *
     * @param placementId - The placement ID for this ad
     */
    static createAd(placementId: string): InterstitialAd;
    /**
     * Add event listener for a specific placement
     *
     * @param placementId - The placement ID to listen to
     * @param eventType - The event type to listen for
     * @param listener - The callback function
     */
    static addEventListener<T extends AdEvent>(placementId: string, eventType: T['type'], listener: AdEventListener<T>): EventSubscription;
}
export default BigCrunchInterstitial;
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