code: def lookup(self, name):
      return None
  
file_path: catboost/contrib/tools/cython/Cython/Compiler/Interpreter.py
imports: from __future__ import absolute_import
  from .Nodes import *
  from .ExprNodes import *
  from .Errors import CompileError
label_desc: Use image node_id 1 for calling the EmptyScope obj's underlying member method code with example usage: obj.lookup(name) and returns: None