code: def as_c_expr(self):
      if self.op is None:
          assert isinstance(self.arg, str)
          return "(_cffi_opcode_t)(%s)" % (self.arg,)
      classname = CLASS_NAME[self.op]
      return "_CFFI_OP(_CFFI_OP_%s, %s)" % (classname, self.arg)
  
file_path: catboost/contrib/python/cffi/py3/cffi/cffi_opcode.py
imports: from .error import VerificationError
label_desc: Use image node_id 2 for calling the CffiOp obj's underlying member method code with example usage: obj.as_c_expr() and returns: unknown, unknown