                                        "Choose how images are sorted. "
                                        "Default: hist"})
  
          argument_list.append({"opts": ('-g', '--group-by'),
                                "type": str,
                                "choices": ("blur", "face", "face-cnn",
                                            "face-yaw", "hist"),
                                "dest": 'group_method',
                                "default": "hist",
                                "help": "Group by method. "
 
</s>
                              "action": Radio,
                                        "Choose how images are sorted. "
                                        "Default: hist"})
  
          argument_list.append({"opts": ('-g', '--group-by'),
                              "action": Radio,
                                "type": str,
                                "choices": ("blur", "face", "face-cnn",
                                            "face-yaw", "hist"),
                                "dest": 'group_method',
                                "default": "hist",
                                "help": "Group by method. "
keep keep keep add keep keep keep keep keep keep
 Add radio buttons for certain GUI options
tools/cli.py