class_docstr: Test of base registry.Registry class.
class_docstr_tok: ["Test","of","base","registry.Registry","class","."]
code: def testGetterSetter(self):
      r = registry.Registry("test_registry")
      r["hello"] = lambda: "world"
      r["a"] = lambda: "b"
      self.assertEqual(r["hello"](), "world")
      self.assertEqual(r["a"](), "b")
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from tensor2tensor.utils import registry
  from tensor2tensor.utils import t2t_model
  import tensorflow.compat.v1
label_desc: Use image node_id 1 for calling the RegistryClassTest obj's underlying member method code with example usage: obj.testGetterSetter() without return types