code: def default_name(class_or_fn):
      """Default name for a class or function.
  
      This is the naming function by default for registries expecting classes or
      functions.
  
      Args:
        class_or_fn: class or function to be named.
  
      Returns:
        Default name for registration.
      """
      return misc_utils.camelcase_to_snakecase(class_or_fn.__name__)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  from tensor2tensor.utils import misc_utils
  import tensorflow.compat.v1
  from tensorflow.python.util import tf_inspect
label_desc: Use image node_id 1 for calling a global function with example usage: default_name(class_or_fn) and returns: misc_utils