Companion

companion object Companion : 
    HttpClientFeature<Config, HttpCookies>

key	`val key: AttributeKey<HttpCookies>` The AttributeKey for this feature.

install	`fun install(feature: HttpCookies, scope: HttpClient): Unit` Installs the feature class for a HttpClient defined at scope.
prepare	`fun prepare(block: Config.() -> Unit): HttpCookies` Builds a TFeature by calling the block with a TConfig config instance as receiver.