def METHOD_NAME(self, options, args):
    # type: (Values, List[Any]) -> None
    if args:
        raise CommandError('Too many arguments')
    num_packages = len(self._find_wheels(options, '*'))
    cache_location = self._wheels_cache_dir(options)
    cache_size = filesystem.format_directory_size(cache_location)
    message = textwrap.dedent("""
        Location: {location}
        Size: {size}
        Number of wheels: {package_count}
    """).format(
        location=cache_location,
        package_count=num_packages,
        size=cache_size,
    ).strip()
    logger.info(message)