code: def fatal(msg, exit_val=1):
      """Deprecated
  
      Equivalent to warn(msg,exit_val=exit_val,level=4)."""
  
      warn(msg, exit_val=exit_val, level=4)
  
imports: from __future__ import print_function
  import sys
  import warnings
label_desc: Use image node_id 4 for calling a global function with example usage: fatal(msg, exit_val) without return types