code: def testPatternAtEnd(self):
      self.assertEqual("foo", self._canonicalize("foo_1"))
  
file_path: tensorflow-upstream/tensorflow/python/distribute/shared_variable_creator_test.py
imports: from tensorflow.python.distribute import shared_variable_creator
  from tensorflow.python.eager import test
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.ops import variable_v1
label_desc: Use image node_id 4 for calling the CanonicalizeVariableNameTest obj's underlying member method code with example usage: obj.testPatternAtEnd() without return types