import type { BrowserContext, ElementSummary, FeedbackTimelineEvent, JsonValue } from "./types";
export declare function nowISO(): string;
export declare function createReportId(prefix?: string): string;
export declare function trimText(value: string | undefined, limit?: number): string | undefined;
export declare function getCurrentUrl(): string | undefined;
export declare function getBrowserContext(): BrowserContext;
export declare function summarizeElement(target: EventTarget | null): ElementSummary | null;
export declare function keepLastEvents<T extends FeedbackTimelineEvent>(events: T[], maxEvents: number): T[];
export declare function mergeMetadata(base?: Record<string, JsonValue>, extra?: Record<string, JsonValue>): Record<string, JsonValue>;