Get Fleet Metric Result
fun GetFleetMetricResult(aggregationField: String? = null, aggregationType: FleetMetricAggregationType? = null, creationDate: Double? = null, description: String? = null, indexName: String? = null, lastModifiedDate: Double? = null, metricArn: String? = null, period: Int? = null, queryString: String? = null, queryVersion: String? = null, tags: List<FleetMetricTag>? = null, unit: String? = null, version: Double? = null)