class_docstr: An object that tracks a list of resources.
code: def resources(self):
      return 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 2 for calling the ResourceTracker obj's underlying member method code with example usage: obj.resources() and returns: self