Description: An EventSource is an essential component in programming systems and software architecture that is responsible for generating and emitting events. These events can be any type of notification or signal indicating that an action or change in the state of a system has occurred. EventSources are fundamental in event-driven programming, where the flow of the application is based on responding to these events. Their design allows different parts of a system to communicate efficiently and asynchronously, facilitating the creation of more dynamic and reactive applications. These sources can be generated by various actions, such as user interactions, changes in data, or events from other systems. The ability to handle multiple events simultaneously and in a non-blocking manner is one of the most notable features of EventSources, making them a powerful tool for developers looking to build scalable and efficient applications.