code: def cfunctype(*arg_types):
      return pt.CFuncType(
          pt.c_int_type,
          [
              CFuncTypeArg("name", arg_type, None)
              for arg_type in arg_types
          ],
      )
  
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 1 for calling a global function with example usage: cfunctype() and returns: pt