code: def list_images(self):
          
          images = []
          for image in (yield from self.query("GET", "images/json", params={"all": 0})):
              if image['RepoTags']:
                  for tag in image['RepoTags']:
                      if tag != "<none>:<none>":
                          images.append({'image': tag})
          return sorted(images, key=lambda i: i['image'])
docs: Gets Docker image list.
  
          :returns: list of dicts
          :rtype: list