code: def log_files_prefix(node_log_zip_name):
      node_ip = node_log_zip_name[:-4].split("_")[1]
      node_port = node_log_zip_name[:-4].split("_")[2]
      return "h2o_" + node_ip + "_" + node_port
  
file_path: h2o-3/h2o-hadoop-common/tests_multinode/python/pyunit_download_logs.py
imports: import sys
  import os
  from tests import pyunit_utils
  import h2o
  import zipfile
  import shutil
label_desc: Use image node_id 1 for calling a global function with example usage: log_files_prefix(node_log_zip_name) and returns: unknown