def _handle_matched_event(self, matching_path: Path) -> None:
    if (self.matching_path is None):
        self.matching_path = matching_path
    self.debouncer.press(f'File change detected: {os.path.relpath(matching_path)}')
def _handle_matched_event(self, matching_path: Path) -> None:
    if (self.matching_path is None):
        self.matching_path = matching_path
    self.debouncer.press(f'File change detected: {os.path.relpath(matching_path)}')