It is already well-established in other programming languages and is an evolution in asynchronous programming. The implementation of this pattern is possible thanks to[coroutines](https://en.wikipedia.org/wiki/Coroutine).

Let’s have a look at the example with coroutine inside of which`await()` suspends it and resumes when the result is available without blocking the thread.

Let’s have a look at the example with coroutine inside of which`await()` suspends it and resumes when the result is available**without blocking the thread**.