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Ktor as well as other official Kotlin libraries use the official Kotlin Coding Conventions.
You can use the official coding standard by adding
kotlin.code.style=official to your
The Official Coding Conventions don’t define what’s the recommended way of using imports.
The IntelliJ default is to include star (
*) imports after importing at least 5 symbols from a package. But in Ktor and other libraries at JetBrains we use and recommend using star imports always.
The rationale behind it is that usually when you include a class, you will probably want to include all the method and property extension declared for that class. That’s specially convenient for operator extension methods.
You can change the import configuration in
Preferences... -> Editor -> Code Style -> Kotlin -> Imports: