# File lib/deltacloud/drivers/google/google_driver.rb, line 173
  def blob_metadata(credentials, opts = {})
    google_client = new_client(credentials)
    safely do
      google_blob = google_client.head_object(opts['bucket'], opts[:id]).headers
      meta_hash = google_blob.inject({}){|result, (k,v)| result[k]=v if k=~/^x-goog-meta-/i ; result}
      meta_hash.gsub_keys("x-goog-meta-", "")
    end
  end