class_docstr: An object that tracks a list of resources.
code: def __init__(self):
      self._resources = []
  
imports: import contextlib
  import copy
  import weakref
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor
  from tensorflow.python.trackable import base
  from tensorflow.python.util import tf_contextlib
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 1 to create a new ResourceTracker object  with example: obj = ResourceTracker()