class_docstr: Module register
class_docstr_tok: ["Module","register"]
docstr: key
docstr_tok: ["key"]
code: def keys(self):
      """key"""
      return self._dict.keys()
  
file_path: delta/delta/utils/register.py
imports: import importlib
  import os
  import sys
  from absl import logging
label_desc: Use image node_id 6 for calling the Register obj's underlying member method code with example usage: obj.keys() and returns: self