override fun install(feature: TokenAutoRefresh, scope: HttpClient) {
    scope.responsePipeline.intercept(HttpRequestPipeline.State) { (type, content) ->
        if (content !is ByteReadChannel) return@intercept

        with(feature) {
            if (context.response.isTokenValid()) {
                proceed()
            } else {
                val newToken = runCatching { refreshToken?.invoke() }.getOrNull() ?: return@intercept
                val newRequest = context.request.copy() <-- doesn't exist
scope.request(newRequest)
            }
        }
    }
}