code: def list_de_duplication(_list):
      if not isinstance(_list, list):
          log.error(
              "[LIST_DE_DUPLICATION] Type of list(%s) is not a list."
              % str(_list)
          )
          return _list
  
      # de-duplication of _list
      result = list(set(_list))
  
      # Keep the order of the elements unchanged
      result.sort(key=_list.index)
  
      log.debug(
          "[LIST_DE_DUPLICATION] %s after removing the duplicate elements, the list becomes %s"
          % (str(_list), str(result))
      )
      return result
  
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 5 for calling a global function with example usage: list_de_duplication(_list) and returns: result, _list