code: def expect_baseline(self, baseline, dispatch="", **kwargs):
      match = self.arg_regex(**kwargs)
      if match is None:
          return
      opt = self.nopt(
          cpu_baseline=baseline,
          cpu_dispatch=dispatch,
          trap_files=kwargs.get("trap_files", ""),
          trap_flags=kwargs.get("trap_flags", ""),
      )
      features = " ".join(opt.cpu_baseline_names())
      if not match:
          if len(features) != 0:
              raise AssertionError(
                  'expected empty features, not "%s"' % features
              )
          return
      if not re.match(match, features, re.IGNORECASE):
          raise AssertionError(
              'baseline features "%s" not match "%s"'
              % (features, match)
          )
  
imports: import re, textwrap, os
  from os import sys, path
  from distutils.errors import DistutilsError
label_desc: Use image node_id 9 for calling the _Test_CCompilerOpt obj's underlying member method code with example usage: obj.expect_baseline(baseline, dispatch) without return types