export type BrowserScriptRequest = {
    cdpHeaders?: Record<string, string>;
    cdpUrl: string;
    mode: "browser";
    source: string;
} | {
    mode: "sandbox";
    source: string;
};
export type BrowserScriptResult = {
    result?: unknown;
    url?: string;
};
export declare function executeBrowserScript(request: BrowserScriptRequest, timeoutMs: number): Promise<BrowserScriptResult>;