code: def add(x, y):
      return x + y
  
imports: from dill.source import getsource, getname, _wrap, likely_import
  from dill.source import getimportable
  from dill._dill import IS_PYPY
  import sys
label_desc: Use image node_id 3 for calling a global function with example usage: add(x, y) and returns: unknown