import type { DesignScreenInteraction, DesignScreenInteractionRunOptions, DesignScreenInteractionReport, DesignScreenDocumentContext } from './designImport.js';
export declare const LIVE_ACTION_SETTLE_MS: number;
export declare const LIVE_TIMER_WAIT_CAP_MS: number;
export declare function settleScreen(iframe: DesignScreenDocumentContext, settleMs: number, signal?: AbortSignal): Promise<void>;
export declare function elementVisible(element: Element): boolean;
/**
 * How long a step waits for its target. Both the default and an authored timeout describe
 * a loaded document, so under a later document-wide deadline (a cold boot still loading
 * the code that renders the target) each is only a floor. An authored zero stays an
 * immediate check.
 */
export declare function targetWaitMs(authoredMs: number | undefined, defaultMs: number, startedAt: number, deadlineAt?: number): number;
export declare function runScreenInteractions(iframe: DesignScreenDocumentContext, interactions: readonly DesignScreenInteraction[], options?: DesignScreenInteractionRunOptions): Promise<DesignScreenInteractionReport>;