docs: def import_image(image_path, os_version):
      """ Import the specific image.
  
      Input parameters:
      :image_path:    Image file name
      :os_version:    Operation System version. e.g. rhel7.4
      """
      image_name = os.path.basename(image_path)
      print("\nChecking if image %s exists ..." % image_name)
  
      image_query_info = client.send_request('image_query', imagename = image_name)
      if image_query_info['overallRC']:
          print("Importing image %s ..." % image_name)
          url = "file://" + image_path
          image_import_info = client.send_request('image_import', image_name, url, 
                                                  {'os_version': os_version})
          if image_import_info['overallRC']:
              raise RuntimeError("Failed to import image %s!\n%s" % 
                                 (image_name, image_import_info))
          else:
              print("Succeeded to import image %s!" % image_name)
      else:
          print("Image %s already exists!" % image_name)