def METHOD_NAME(self) -> None:
    """
    If the I{LISTEN_FDS} and I{LISTEN_FDNAMES} environment variables
    are not present, no inherited descriptors are reported.
    """
    env = buildEnvironment(3, os.getpid())
    del env["LISTEN_FDS"]
    del env["LISTEN_FDNAMES"]
    sddaemon = ListenFDs.fromEnvironment(environ=env)
    self.assertEqual([], sddaemon.inheritedDescriptors())