code: def update_key_value(node, modify_k, modify_v):
      # update the value of modify_k to modify_v
      if isinstance(node, list):
          for i in node:
              update_key_value(i, modify_k, modify_v)
      elif isinstance(node, dict):
          if modify_k in node:
              node[modify_k] = modify_v
          for j in node.values():
              update_key_value(j, modify_k, modify_v)
      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 3 for calling a global function with example usage: update_key_value(node, modify_k, modify_v) and returns: node