private StorageClient getMetadataAzureStorageClient() {
    return storageClientList.get(0);
  }
Finds the StorageClient that corresponds to Azure storage account holding Ambry metadata blobs.
@return {@link StorageClient} that corresponds to Azure storage account holding Ambry metadata blobs.
ambry-cloud/src/main/java/com/github/ambry/cloud/azure/ShardedStorageClient.java