Can you give examples of situations where this concept is applied?

Without context, it's difficult to determine exactly which concept is being referred to, but let's assume the question relates to Go and some common pattern or mechanism.

For example, if it's about goroutines and channels — these are key concepts for concurrent programming in Go.

Examples of use cases:

• Handling multiple requests simultaneously in a web server.
• Parallel data processing, such as reading from multiple sources and merging results.
• Implementing timeouts and cancellation of operations using context.

If it's about interfaces — they allow writing flexible and extensible code, for example, for creating various implementations of data storage.

If you specify the concept, I can provide more specific examples.