code: def say_output():
      say("Latest from-file output:")
      say(open("from-file/output", "r").read().rstrip())
  
file_path: guildai/examples/hello-package-legacy/say.py
imports: import argparse
  import sys
  import time
label_desc: Use image node_id 2 for calling a global function with example usage: say_output() without return types