public static function _apply_stats($value, array &$args, HandlerList $list)
{
// Create an array of stat collectors that are disabled (set to false)
// by default. If the user has passed in true, enable all stat
// collectors.
$defaults = array_fill_keys(['http', 'retries', 'timer'], $value === true);
$args['stats'] = is_array($value) ? array_replace($defaults, $value) : $defaults;
if ($args['stats']['timer']) {
$list->prependInit(Middleware::timer(), 'timer');
}
}
