ExportBucketInfo will list all buckets for a given project and export the data as a prometheus metric.

ExportGCPCostData will collect all the pricing information for the passed in serviceName and export cost related metrics for each sku.

OpClassFromSkuDescription normalizes sku description to one of the following: - If the opsclass contains Class A, it's "class-a" - If the opsclass contains Class B, it's "class-b" - Otherwise, return the original opsclass.

RegionNameSameAsStackdriver will normalize region collectorName to be the same as what Stackdriver uses.

StorageClassFromSkuDescription normalize sku description to match the output from stackdriver exporter.