class_docstr: A domain that takes on a fixed set of values.
  
  These values may be of any (single) domain type.
class_docstr_tok: ["A","domain","that","takes","on","a","fixed","set","of","values",".","These","values","may","be","of","any","(","single",")","domain","type","."]
code: def dtype(self):
      return self._dtype
  
imports: import abc
  import hashlib
  import json
  import random
  import time
  import numpy
  from tensorboard.compat import tf2
  from tensorboard.compat.proto import summary_pb2
  from tensorboard.plugins.hparams import api_pb2
  from tensorboard.plugins.hparams import metadata
  from tensorboard.plugins.hparams import plugin_data_pb2
label_desc: Use image node_id 4 for calling the Discrete obj's underlying member method code with example usage: obj.dtype() and returns: self