Describe a real-world scenario where interface embedding would be useful.

Implementing a web server in Go.
Creating a database connection pool.
Defining a set of common HTTP request handlers.
Building a user authentication system.

Interface embedding can be useful in scenarios where a set of common behaviors or methods need to be shared across multiple types. For example, when developing a web application, you might have various HTTP request handlers with shared functionality, such as authentication and logging. By embedding a common interface for these behaviors in your handler types, you can ensure consistent implementation and reduce code duplication. This enhances code maintainability and promotes a clean and modular design.

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