code: def validate(self):
          
          assert self.path, "{} must have a path".format(self.__class__.__name__)
          ext = extract_path_ext(self.path, default_ext=self.default_ext)
          if ext not in self.allowed_formats and ext not in CONVERTIBLE_FORMATS[format_presets.VIDEO_HIGH_RES]:
              raise ValueError('Incompatible extension {} for VideoFile at {}'.format(ext, self.path))
docs: Ensure `self.path` has one of the extensions in `self.allowed_formats`.