code: def __init__(self, version_str):
      super().__init__(f"Major version `{version_str}` not present.")
  
imports: import re
  import typing
  from modelkit.assets import errors
  from modelkit.assets.versioning import versioning
label_desc: Use image node_id 1 to create a new MajorVersionDoesNotExistError object from inherited base classes: errors with example: obj = MajorVersionDoesNotExistError(version_str)