code: def exist_check(param, _list):
      if param in _list:
          return True
  
      else:
          log.error(
              "[EXIST_CHECK] Param(%s) is not in (%s)." % (param, _list)
          )
          return False
  
file_path: milvus/tests/python_client/check/param_check.py
imports: import sys
  import operator
  from common import common_type
  from utils.util_log import test_log
label_desc: Use image node_id 3 for calling a global function with example usage: exist_check(param, _list) and returns: True, False