How can you change the execution context of a coroutine in Kotlin?

In Kotlin, the coroutine execution context can be changed using the withContext function, which allows switching to another dispatcher or adding elements to the context.

For example, to execute part of the code in another thread (such as a thread pool for input/output), you can write:

import kotlinx.coroutines.*

suspend fun fetchData() {
    withContext(Dispatchers.IO) {
        // code running in IO thread
    }
}

You can also combine contexts by adding elements, for example, to pass the name of the coroutine:

withContext(Dispatchers.Default + CoroutineName("MyCoroutine")) {
    // code
}

Thus, withContext allows temporarily changing the coroutine's execution context.