import * as Handlers from '../handlers/handlers.js';
import type * as Types from '../types/types.js';
import { type InsightModel, type InsightSetContext } from './types.js';
export declare const UIStrings: {
    /**
     * @description Title of an insight that provides the user with the list of network requests that blocked and therefore slowed down the page rendering and becoming visible to the user.
     */
    readonly title: "Render-blocking requests";
    /**
     * @description Text to describe that there are requests blocking rendering, which may affect LCP.
     */
    readonly description: string;
    /**
     * @description Label to describe a network request (that happens to be render-blocking).
     */
    readonly renderBlockingRequest: "Request";
    /**
     * @description Label used for a time duration.
     */
    readonly duration: "Duration";
    /**
     * @description Text status indicating that no requests blocked the initial render of a navigation
     */
    readonly noRenderBlocking: "No render-blocking requests for this navigation";
};
export declare const i18nString: (id: string, values?: Record<string, string> | undefined) => Record<string, string>;
export declare function isRenderBlockingInsight(insight: InsightModel): insight is RenderBlockingInsightModel;
export type RenderBlockingInsightModel = InsightModel<typeof UIStrings, {
    renderBlockingRequests: Types.Events.SyntheticNetworkRequest[];
    requestIdToWastedMs?: Map<string, number>;
}>;
export declare function generateInsight(data: Handlers.Types.HandlerData, context: InsightSetContext): RenderBlockingInsightModel;
export declare function createOverlayForRequest(request: Types.Events.SyntheticNetworkRequest): Types.Overlays.EntryOutline;
export declare function createOverlays(model: RenderBlockingInsightModel): Types.Overlays.Overlay[];