code: def bar(self, x):
      return x * x + x
  
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 1 for calling the Foo obj's underlying member method code with example usage: obj.bar(x) and returns: unknown