/// <reference types="chrome" />
/// <reference types="chrome" />
import { ActionKeyAlias } from './keys';
type HasAlias<T extends string> = {
    [K in T]: {
        [P in K]: string;
    };
}[T];
type MessageWithAction<Message> = HasAlias<typeof ActionKeyAlias[number]> & Message;
interface ClientOptions<MessageModule = (typeof chrome.runtime | typeof chrome.tabs)> {
    module: MessageModule;
    tabId?: number;
    extId?: string;
}
export declare class Client<MessageModule = (typeof chrome.runtime | typeof chrome.tabs)> {
    private readonly __mod__;
    private readonly __tab_id__?;
    private readonly __ext_id__?;
    constructor(opt: ClientOptions<MessageModule>);
    static tab(tab: chrome.tabs.Tab | number): Client<typeof chrome.tabs>;
    static runtime(extId?: string): Client<typeof chrome.runtime>;
    send<Message = Record<string, unknown>, Response = any>(action: string, message?: Message): Promise<Response>;
    send<Message = Record<string, unknown>, Response = any>(message: MessageWithAction<Message>): Promise<Response>;
    private sendMessage;
    private findActionKeyInMessage;
    static _: Client<typeof chrome.runtime>;
    static $: (tab: chrome.tabs.Tab | number) => Client<typeof chrome.tabs>;
}
export {};