featureOrNull
fun <A : Pipeline<*, ApplicationCall>, B : Any, F : Any> A.featureOrNull(
feature: ApplicationFeature<A, B, F>
): F?Returns feature instance for this pipeline, or null if feature is not installed
fun <A : Pipeline<*, ApplicationCall>, B : Any, F : Any> A.featureOrNull(
feature: ApplicationFeature<A, B, F>
): F?Returns feature instance for this pipeline, or null if feature is not installed