/// <reference types="firefox-webext-browser" />
import { InternalMessageData, StructuredCloneData } from './types';
import { BaseEventHandler } from './BaseEventHandler';
import { Destination } from './destination';
import _QueryQueryInfo = browser.tabs._QueryQueryInfo;
import MessageSender = browser.runtime.MessageSender;
export declare class BackgroundEventHandler<EventMap extends Record<string, StructuredCloneData>> extends BaseEventHandler<EventMap, InternalMessageData, [
    Destination | undefined
], MessageSender> {
    private query;
    constructor(query?: _QueryQueryInfo);
    emitContent<K extends keyof EventMap>(key: K, data: EventMap[K]): void;
    emitContext<K extends keyof EventMap>(key: K, data: EventMap[K]): void;
    protected sendEvent(serialized: InternalMessageData, destination?: Destination): void;
    protected serialize<K extends keyof EventMap>(type: K, data: EventMap[K]): InternalMessageData;
    protected deserialize<K extends keyof EventMap>(serialized: InternalMessageData): {
        type: K;
        data: EventMap[K];
    };
    protected setup(): void;
}