/**
 * From typed-emitter
 * https://npm.im/typed-emitter
 */
/**
 * Type-safe event emitter.
 * @hidden
 */
export interface TypedEventEmitter<Events> {
    /** @hidden */
    addListener<E extends keyof Events>(event: E, listener: Events[E]): this;
    /** @hidden */
    on<E extends keyof Events>(event: E, listener: Events[E]): this;
    /** @hidden */
    once<E extends keyof Events>(event: E, listener: Events[E]): this;
    /** @hidden */
    prependListener<E extends keyof Events>(event: E, listener: Events[E]): this;
    /** @hidden */
    prependOnceListener<E extends keyof Events>(event: E, listener: Events[E]): this;
    /** @hidden */
    off<E extends keyof Events>(event: E, listener: Events[E]): this;
    /** @hidden */
    removeAllListeners<E extends keyof Events>(event?: E): this;
    /** @hidden */
    removeListener<E extends keyof Events>(event: E, listener: Events[E]): this;
    /** @hidden */
    emit<E extends keyof Events>(event: E, ...args: Arguments<Events[E]>): boolean;
    /** @hidden */
    eventNames(): (keyof Events | string | symbol)[];
    /** @hidden */
    rawListeners<E extends keyof Events>(event: E): Function[];
    /** @hidden */
    listeners<E extends keyof Events>(event: E): Function[];
    /** @hidden */
    listenerCount<E extends keyof Events>(event: E): number;
    /** @hidden */
    getMaxListeners(): number;
    /** @hidden */
    setMaxListeners(maxListeners: number): this;
}
/** @hidden */
export declare type Arguments<T> = [T] extends [(...args: infer U) => any] ? U : [T] extends [void] ? [] : [T];