code: def __init__(self, experiment):
      assert self.message is not None
      super().__init__(
          self.message.format(
              project=experiment._project.internal_id,
              **STYLES,
          )
      )
  
imports: from neptune.common.exceptions import EMPTY_STYLES, STYLES, UNIX_STYLES, WINDOWS_STYLES, FileNotFound, InvalidNotebookPath, NeptuneIncorrectProjectQualifiedNameException, NeptuneMissingProjectQualifiedNameException, NotADirectory, NotAFile
  from neptune.legacy import envs
label_desc: Use image node_id 1 to create a new DownloadSourcesException object from inherited base classes: UnsupportedInAlphaException with example: obj = DownloadSourcesException(experiment)