code: def _read_file(filename):
      with open(filename) as afile:
          return afile.read().strip("\n")
  
file_path: catboost/library/python/cores/__init__.py
imports: import os
  import re
  import glob
  import socket
  import logging
  import platform
  import subprocess
  import six
  from library.python.reservoir_sampling import reservoir_sampling
label_desc: Use image node_id 1 for calling a global function with example usage: _read_file(filename) and returns: afile