}

 private:
  // Returns the dimension length of the channel dimension and also the slide
  // size by each position in the channel dimension accordingly. tfl.conv2d and
  // tfl.fully_connected has heading channel dimension, but tfl.depthwise_conv2d
  // has tailing channel dimension. This function is to provide a utility to
  // create the above information from the op property.

  curl_cmd+=("${EXTRA_ADDONS_URL}")

  "${curl_cmd[@]}"
}

# A function that fetches a GCE metadata value and echoes it out.
# Args:
#   $1 : URL path after /computeMetadata/v1/ (without heading slash).
#   $2 : An optional default value to echo out if the fetch fails.
#
# NOTE: this function is duplicated in configure.sh, any changes here should be
# duplicated there as well.
function get-metadata-value {