code: def endpoint_ip():
      return "127.0.0.1"
  
file_path: cudf/python/dask_cudf/dask_cudf/io/tests/test_s3.py
imports: import os
  import socket
  from contextlib import contextmanager
  from io import BytesIO
  import pandas
  import pyarrow.fs
  import pytest
  import dask_cudf
label_desc: Use image node_id 1 for calling a global function with example usage: endpoint_ip() and returns: str