class_docstr: a caliban base image spec
class_docstr_tok: ["a","caliban","base","image","spec"]
code: def image_type(self) -> ImageType:
      if self.gpu_version is None:
          return ImageType.CPU
      else:
          if self.cpu_version is None:
              return ImageType.GPU_BASE
          else:
              return ImageType.GPU
  
imports: from absl import flags, app, logging
  from copy import copy
  from typing import Dict, List, Any, NamedTuple, Optional, Set
  from enum import Enum
  import json
  import pprint
label_desc: Use image node_id 1 for calling the ImageSpec obj's underlying member method code with example usage: obj.image_type() and returns: ImageType, ImageType, ImageType