"""
v1 implements pure data transformations according to the Docker Image Specification v1.1.

https://github.com/docker/docker/blob/master/image/spec/v1.1.md
"""

from collections import namedtuple

class DockerV1Metadata(namedtuple('DockerV1Metadata',
                                  ['namespace_name', 'repo_name', 'image_id', 'checksum',
                                   'content_checksum', 'created', 'comment', 'command',
                                   'author', 'parent_image_id', 'compat_json'])):
  """
  DockerV1Metadata represents all of the metadata for a given Docker v1 Image.
  The original form of the metadata is stored in the compat_json field.
  """