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kotlinlang

Hi! I'm trying to learn how to use Ktor, but I ran into a problem. When I try to do this in `main` :
```val server = embeddedServer(Netty, port = 8080) {
	install(ContentNegotiation) {
		gson {
			setPrettyPrinting()
		}
	}
}```
`setPrettyPrinting()` cannot be found. I have the `io.ktor:ktor-gson` dependency installed. What's going on? (I can send code if needed)
Note: I'm following this tutorial: <https://ocallaghan-donal.medium.com/building-a-kotlin-back-end-in-15-minutes-5ffdbe018776>