code: def get_env(self):
          
  
          env = super(KubeSpawner, self).get_env()
          # deprecate image
          env['JUPYTER_IMAGE_SPEC'] = self.image
          env['JUPYTER_IMAGE'] = self.image
  
          return env
docs: Return the environment dict to use for the Spawner.
  
          See also: jupyterhub.Spawner.get_env