class_docstr: Used with `colocate_with` to create a non-mirrored variable.
code: def __init__(self, device):
      self.device = device
  
file_path: tensorflow-upstream/tensorflow/python/distribute/numpy_dataset.py
imports: import numpy
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.eager import context
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.ops import variable_v1
  from tensorflow.python.util import nest
label_desc: Use image node_id 1 to create a new SingleDevice object from inherited base classes: object with example: obj = SingleDevice(device)