import { EventEmitter } from 'eventemitter3';
import { Connection } from './connection';
type KeepAliveHandlerEvents = {
    'telnyx.internal.keepalive.error': () => void;
};
export declare class KeepAliveHandler extends EventEmitter<KeepAliveHandlerEvents> {
    private connection;
    constructor(connection: Connection);
    start: () => void;
    stop: () => void;
    private onSocketMessage;
}
export {};