code: def __init__(self, fname, dvc_ignored=False):
      self.file = fname
      message = self.DVC_IGNORED if dvc_ignored else self.DOES_NOT_EXIST
      super().__init__(f"'{self.file}' {message}")
  
imports: from dvc.exceptions import DvcException
label_desc: Use image node_id 1 to create a new StageFileDoesNotExistError object from inherited base classes: DvcException with example: obj = StageFileDoesNotExistError(fname, dvc_ignored)