Cancellation Tokens

# Mastering Cancellation Tokens in C# Asynchronous Programming Have you ever kicked off a long-running task in your C# application, only to realize you needed to stop it mid-execution? Perhaps a user clicked "cancel," or the task simply became irrelevant. Without a proper mechanism, you're stuck waiting for it to finish, wasting resources and potentially impacting performance. This is where **Cancellation Tokens** come to the rescue. They provide a clean, cooperative way to signal and handle ca