code: def list_images(self):
          
          images = []
          for image in self._list_all_podman_images():
              try:
                  i_name, tag = parse_reference(image["names"][0])
              except (IndexError, TypeError):
                  i_name, tag = None, None
              d_im = PodmanImage(i_name, tag=tag, identifier=image["id"],
                                 pull_policy=PodmanImagePullPolicy.NEVER)
              images.append(d_im)
  
          return images
docs: List all available podman images.
  
          :return: collection of instances of :class:`conu.PodmanImage`