code: def service_available(self):
      index_url = "http://%s" % self._domain
      request = SixUrlRequest(index_url)
      response = None
      try:
          response = SixUrlOpen(request).read()
      except Exception:
          print("Dana service is not available.")
      return response is not None
  
file_path: mace/tools/dana/dana_cli.py
imports: import fcntl
  import json
  import os
label_desc: Use image node_id 2 for calling the DanaCli obj's underlying member method code with example usage: obj.service_available() and returns: unknown