code: def __init__(self, provided_backend_name):
      super(InvalidNeptuneBackend, self).__init__(
          'Unknown {} "{}". '
          "Use this environment variable to modify neptune-client behaviour at runtime, "
          "e.g. using {}=offline allows you to run your code without logging anything to Neptune"
          "".format(envs.BACKEND, provided_backend_name, envs.BACKEND)
      )
  
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 InvalidNeptuneBackend object from inherited base classes: NeptuneException with example: obj = InvalidNeptuneBackend(provided_backend_name)