code: def cppclasstype(name, base_classes):
      return pt.CppClassType(name, None, "CPP_" + name, base_classes)
  
file_path: catboost/contrib/tools/cython/Cython/Compiler/Tests/TestSignatureMatching.py
imports: import unittest
  from Cython.Compiler import PyrexTypes
  from Cython.Compiler.ExprNodes import NameNode
  from Cython.Compiler.PyrexTypes import CFuncTypeArg
label_desc: Use image node_id 2 for calling a global function with example usage: cppclasstype(name, base_classes) and returns: pt