# File lib/deltacloud/drivers/ec2/ec2_driver.rb, line 464
        def blob_data(credentials, bucket_id, blob_id, opts={})
          s3_client = new_client(credentials, :s3)
          safely do
            s3_client.interface.get(bucket_id, blob_id) do |chunk|
              yield chunk
            end
          end
        end