class_docstr: Concrete class that implements an interface to Microsoft Visual C++,
  as defined by the CCompiler abstract class.
code: def spawn(self, cmd):
      env = dict(os.environ, PATH=self._paths)
      with self._fallback_spawn(cmd, env) as fallback:
          return super().spawn(cmd, env=env)
      return fallback.value
  
imports: import os
  import subprocess
  import contextlib
  import warnings
  import unittest.mock
  from .errors import DistutilsExecError, DistutilsPlatformError, CompileError, LibError, LinkError
  from .ccompiler import CCompiler, gen_lib_options
  from ._log import log
  from .util import get_platform
  from itertools import count
label_desc: Use image node_id 9 for calling the MSVCCompiler obj's underlying member method code with example usage: obj.spawn(cmd) and returns: fallback, super