docs: def get_image(vm_):
      '''
      Return the image object to use
      '''
      vm_image = config.get_cloud_config_value('image', vm_, __opts__).encode(
          'ascii', 'salt-cloud-force-ascii'
      )
  
      images = avail_images()
      for key, value in six.iteritems(images):
          if vm_image and vm_image in (images[key]['id'], images[key]['name']):
              return images[key]
  
      raise SaltCloudNotFound(
          'The specified image, \'{0}\', could not be found.'.format(vm_image)
      )