/**
 * A normalized configuration object based on arguments passed to
 * the plugin.
 */
export declare class Config {
    readonly callback: Function;
    readonly encoding: string | null;
    readonly thisArg: any;
    static fromPluginArguments(arg0: any, arg1: any): Config;
    private static resolveArgs(arg0, arg1);
    private static resolveOptions(optionsOrEncoding);
    private static getEncoding(options);
    private static getThisArg(options);
    constructor(callback: Function, encoding: string | null, thisArg: any);
}