/*!
 * Copyright 2021 WPPConnect Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * The name of the event.
 */
type Event = string | symbol;
/**
 * The callback function.
 */
type Listener = (...args: any[]) => void;
/** @whatsapp 76521
 * @whatsapp 34342 >= 2.2204.13
 * @whatsapp 876521 >= 2.2222.8
 */
export declare class EventEmitter {
    /**
     * Adds the listener function to the end of the listeners array for the event named eventName.
     *
     * @param eventName The name of the event.
     * @param listener The callback function.
     * @param context The value of `this` provided for the call to `listener`
     * @returns Returns a reference to the `EventEmitter`, so that calls can be chained.
     */
    on(eventName: Event, listener: Listener, context?: any): this;
    /**
     * Adds a one-time listener function for the event named eventName.
     *
     * @param eventName The name of the event.
     * @param listener The callback function.
     * @param context The value of `this` provided for the call to `listener`
     * @returns Returns a reference to the `EventEmitter`, so that calls can be chained.
     */
    once(eventName: Event, listener: Listener, context?: any): this;
    /**
     * Removes the specified listener from the listener array for the event named eventName.
     *
     * @param eventName The name of the event.
     * @param listener The callback function.
     * @param context The value of `this` provided for the call to `listener`
     * @returns Returns a reference to the `EventEmitter`, so that calls can be chained.
     */
    off(eventName?: Event, listener?: Listener, context?: any): this;
    /**
     * Synchronously calls each of the listeners registered for the event named eventName, in the order they were registered, passing the supplied arguments to each.
     * @returns Returns a reference to the `EventEmitter`, so that calls can be chained.
     */
    trigger(eventName: Event, ...args: any[]): this;
    stopListening(context?: any, eventName?: Event, listener?: Listener): this;
    /**
     * @param context The value of `this` provided for the call to `listener`
     * @param eventName The name of the event.
     * @param listener The callback function.
     */
    listenTo(context: any, eventName: Event, listener?: Listener): this;
    /**
     * @param context The value of `this` provided for the call to `listener`
     * @param eventName The name of the event.
     * @param listener The callback function.
     */
    listenToOnce(context: any, eventName: Event, listener?: Listener): this;
    /**
     * @param context The value of `this` provided for the call to `listener`
     * @param eventName The name of the event.
     * @param listener The callback function.
     */
    listenToAndRun(context: any, eventName: Event, listener?: Listener): this;
    isListening(eventName: Event): boolean;
    /**
     * Alias of `on`
     * @alias on
     */
    bind(eventName: Event, listener: Listener, context?: any): this;
    /**
     * Alias of `off`
     * @alias off
     */
    unbind(eventName?: Event, listener?: Listener, context?: any): this;
    /**
     * Alias of `off`
     * @alias off
     */
    removeListener(eventName?: Event, listener?: Listener, context?: any): this;
    /**
     * Removes all listeners.
     * @returns Returns a reference to the `EventEmitter`, so that calls can be chained.
     */
    removeAllListeners(): this;
    /**
     * Alias of `trigger`
     * @alias trigger
     */
    emit(eventName: Event, ...args: any[]): this;
}
export {};