export declare const PORT_FLAG = "--helpPort";
export declare const TIMEOUT_FLAG = "--timeout";
export declare enum SupportedHook {
    AfterEmit = "afterEmit"
}
export declare enum SupportedTarget {
    ElectronMain = "electron-main",
    ElectronRenderer = "electron-renderer"
}
export interface HotElectronLauncherPluginOptions {
    electronProcessArgs: string[];
    connectionTimeout: number;
    enableLiveReload: boolean;
}
export declare const defaultOptions: HotElectronLauncherPluginOptions;
export declare enum HelpEvent {
    HANDLER_CONNECTED = "HANDLER_CONNECTED",
    NOTIFIER_CONNECTED = "NOTIFIER_CONNECTED",
    REQUEST_REFRESH = "REQUEST_REFRESH",
    CONFIRM_REFRESH = "CONFIRM_REFRESH"
}
export declare type HelpPayload = {
    event: HelpEvent;
    data?: any;
};
export declare const logPayload: (payload: HelpPayload, prefix?: string) => void;
export declare class HotElectronLauncherPluginError extends Error {
    constructor(message: string);
}
export declare const extractArgValue: (argFlag: string, args: string[], returnOnMissing?: any) => any;
export declare const timeoutify: (promise: Promise<any>, millis: number, description?: string | undefined) => Promise<any>;