How to use the west.cmake.make_c_identifier function in west

def _get_runner_args(cache, runner):
    runner_ident = cmake.make_c_identifier(runner)
    args_var = 'ZEPHYR_RUNNER_ARGS_{}'.format(runner_ident)
    return cache.get_list(args_var)

def _get_runner_args(cache, runner):
    runner_ident = cmake.make_c_identifier(runner)
    args_var = 'ZEPHYR_RUNNER_ARGS_{}'.format(runner_ident)
    return cache.get_list(args_var)

def _get_runner_args(cache, runner):
    runner_ident = cmake.make_c_identifier(runner)
    args_var = 'ZEPHYR_RUNNER_ARGS_{}'.format(runner_ident)
    return cache.get_list(args_var)

# - Override cached values with applicable command-line options

    cfg = cached_runner_config(build_dir, cache)
    _override_config_from_namespace(cfg, args)

    # Runner creation, phase 3.
    #
    # - Pull out cached runner arguments, and append command-line
    #   values (which should override the cache)
    # - Construct a runner-specific argument parser to handle cached
    #   values plus overrides given in runner_args
    # - Parse arguments and create runner instance from final
    #   RunnerConfig and parsed arguments.

    cached_runner_args = cache.get_list(
        'ZEPHYR_RUNNER_ARGS_{}'.format(cmake.make_c_identifier(runner)))
    assert isinstance(runner_args, list), runner_args
    # If the user passed -- to force the parent argument parser to stop
    # parsing, it will show up here, and needs to be filtered out.
    runner_args = [arg for arg in runner_args if arg != '--']
    final_runner_args = cached_runner_args + runner_args
    parser = argparse.ArgumentParser(prog=runner)
    runner_cls.add_parser(parser)
    parsed_args, unknown = parser.parse_known_args(args=final_runner_args)
    if unknown:
        raise CommandContextError('Runner', runner,
                                  'received unknown arguments', unknown)
    runner = runner_cls.create(cfg, parsed_args)
    runner.run(command_name)