message: Fix syntax error from last change
diff: @@ -985,7 +985,7 @@ def is_tensor(x): # pylint: disable=invalid-name
  Usage example:
  >>> tf.is_tensor(constant([[1,2,3],[4,5,6],[7,8,9]]))
  True
  - >>> tf.is_tensor("Hello World"))
  + >>> tf.is_tensor("Hello World")
  False
  Args:
  