in client-default/src/main/scala/com.gu.contentapi.client/GuardianContentClient.scala [13:17]
def apply(apiKey: String): GuardianContentClient = {
implicit val executor = ScheduledExecutor()
val strategy = BackoffStrategy.doublingStrategy(Duration(250L, TimeUnit.MILLISECONDS), 5)
GuardianContentClient(apiKey, strategy)
}