import { AdvantageFormat } from '../../types';

/**
 * Single-creative DoubleMidscroll format
 *
 * This format provides a 2x viewport height scroll area with scroll progress events,
 * allowing a single creative to respond to scroll position without requiring a separate
 * background creative.
 *
 * Key differences from standard DoubleMidscroll:
 * - Only one creative required (no backgroundAdURL needed)
 * - Provides scroll progress (0-1) instead of waypoint events
 * - Creative can implement its own scroll-based animations
 * - Simpler setup for advertisers who don't need separate background/foreground,
 *   for example when delivering creative as a tag
 */
export declare const doubleMidscrollSingle: AdvantageFormat;