code: def _read_file(path):
      try:
          return open(path, "r").read()
      except IOError as e:
          sys.stderr.write("Error reading %s: %s\n" % (path, e))
          sys.exit(1)
  
file_path: guildai/examples/hello-package-legacy/say.py
imports: import argparse
  import sys
  import time
label_desc: Use image node_id 4 for calling a global function with example usage: _read_file(path) and returns: open