# File lib/deltacloud/drivers/azure/azure_driver.rb, line 153
  def update_blob_metadata(credentials, opts={})
    azure_connect(credentials)
    meta_hash = opts['meta_hash']
    meta_hash.gsub_keys("HTTP_X_Deltacloud_Blobmeta_", "x-ms-meta-")
    safely do
      the_blob = WAZ::Blobs::Container.find(opts['bucket'])[opts[:id]]
      the_blob.put_metadata!(meta_hash)
    end
  end