// create a new event that signals when a file is ready for reading $file_evt = new Event(); // create a new event that signals when a socket is ready for reading $socket_evt = new Event(socket_resource, Event::READ | Event::PERSIST);In these examples, the first event creates a new event that will be used to detect when a file can be read. The second event creates an event that will be used to detect when a socket is ready for reading. The socket_resource parameter represents the socket that is being monitored. The READ flag specifies that the event should be triggered when the socket is ready for reading, and the PERSIST flag ensures that the event will continue to be monitored until it is explicitly deleted. It is difficult to determine a package library based solely on the use of the Event __construct method, as this method is commonly used in a wide variety of PHP applications and libraries. However, it is often used in conjunction with other event-based packages such as libevent, ReactPHP, or the Symfony EventDispatcher component.