Sampling
constructor(attributes: Map<String, String>? = null, fixedRate: Double? = null, host: String? = null, httpMethod: String? = null, priority: Int? = null, reservoirSize: Int? = null, resourceArn: String? = null, ruleArn: String? = null, ruleName: String? = null, serviceName: String? = null, serviceType: String? = null, urlPath: String? = null)