import type { CdpSend } from "./snapshot.js";
export type DialogPolicy = "accept" | "dismiss";
export interface ObservedDialog {
    type: string;
    message: string;
    handledWith: DialogPolicy;
    atMs: number;
}
export interface ObservedConsole {
    level: string;
    text: string;
    atMs: number;
}
export interface ObservedRequestFailure {
    url: string;
    errorText: string;
    atMs: number;
}
export interface ObservedDownload {
    url: string;
    fileName: string;
    atMs: number;
}
export interface ObservationSnapshot {
    console: ObservedConsole[];
    failedRequests: ObservedRequestFailure[];
    downloads: ObservedDownload[];
    dialogs: ObservedDialog[];
    newTabUrls: string[];
}
/** Per-session ring buffers for console output, failed requests, downloads,
 *  dialogs and popup tabs. Dialogs are answered automatically so an unanswered
 *  prompt can never freeze the page. */
export declare class Observations {
    private readonly limit;
    dialogPolicy: DialogPolicy;
    readonly console: ObservedConsole[];
    readonly failedRequests: ObservedRequestFailure[];
    readonly downloads: ObservedDownload[];
    readonly dialogs: ObservedDialog[];
    readonly newTabUrls: string[];
    constructor(limit?: number, dialogPolicy?: DialogPolicy);
    recordConsole(level: string, text: string): void;
    recordFailedRequest(url: string, errorText: string): void;
    recordDownload(url: string, fileName: string): void;
    recordDialog(type: string, message: string, handledWith: DialogPolicy): void;
    recordNewTab(url: string): void;
    since(afterMs?: number): ObservationSnapshot;
    clear(): void;
}
/** Turns on the CDP domains the observation buffers need.
 *
 *  `Log.enable` alone gives browser-level entries (network failures, security,
 *  deprecations) but NOT the page's own `console.*` calls; those require
 *  `Runtime.enable`, whose presence is a documented automation signal to bot
 *  detectors (rebrowser.net/blog/how-to-fix-runtime-enable-cdp-detection-of-
 *  puppeteer-playwright-and-other-automation-libraries). Callers opt in per
 *  session with `pageConsole`. */
export declare function enableObservation(send: CdpSend, sessionId: string, opts?: {
    pageConsole?: boolean;
}): Promise<void>;
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