code: def opt(self):
      if not self._opt:
          self._opt = self.nopt()
      return self._opt
  
imports: import re, textwrap, os
  from os import sys, path
  from distutils.errors import DistutilsError
label_desc: Use image node_id 3 for calling the _Test_CCompilerOpt obj's underlying member method code with example usage: obj.opt() and returns: self