              args = option["opts"]
              kwargs = {key: option[key] for key in option.keys() if key not in ("opts", "group")}
              self.parser.add_argument(*args, **kwargs)
  
      def _process_suppressions(self):
          """ Certain options are only available for certain backends.
  
          Suppresses command line options that are not available for the running backend.
          """
          fs_backend = get_backend()
 
</s> remove         argument_list = []
 </s> add         argument_list: List[Dict[str, Any]] = [] </s> remove     def _add_arguments(self):
 </s> add     def _add_arguments(self) -> None: </s> remove         argument_list = []
 </s> add         argument_list: List[Dict[str, Any]] = [] </s> remove     def get_optional_arguments():
 </s> add     def get_optional_arguments() -> List[Dict[str, Any]]: </s> remove         argument_list = []
 </s> add         argument_list: List[Dict[str, Any]] = []
    def _process_suppressions(self) -> None:
              args = option["opts"]
              kwargs = {key: option[key] for key in option.keys() if key not in ("opts", "group")}
              self.parser.add_argument(*args, **kwargs)
  
    def _process_suppressions(self) -> None:
          """ Certain options are only available for certain backends.
  
          Suppresses command line options that are not available for the running backend.
          """
          fs_backend = get_backend()
keep keep keep keep replace keep keep keep keep keep
 Live Preview - Replace cv2 with matplotlib viewer 
lib/cli/args.py