import { ServiceWorkerPlugin, FetchContext } from '@glacierjs/sw';
export declare class CollectorSW implements ServiceWorkerPlugin {
    readonly name = "@glacierjs/plugin-collector";
    private collectedData;
    onFetch(context: FetchContext): Promise<void>;
    onInstall(): Promise<void>;
    onMessage({ event }: {
        event: any;
    }): Promise<void>;
    private collect;
}