code: def update_key_name(node, modify_k, modify_k_new):
      # update the name of modify_k to modify_k_new
      if isinstance(node, list):
          for i in node:
              update_key_name(i, modify_k, modify_k_new)
      elif isinstance(node, dict):
          if modify_k in node:
              value_backup = node[modify_k]
              del node[modify_k]
              node[modify_k_new] = value_backup
          for j in node.values():
              update_key_name(j, modify_k, modify_k_new)
      return node
  
file_path: milvus/tests/python_client/utils/util_common.py
imports: import glob
  import time
  from yaml import full_load
  import json
  import pandas
  from utils.util_log import test_log
label_desc: Use image node_id 4 for calling a global function with example usage: update_key_name(node, modify_k, modify_k_new) and returns: node