public static function _apply_user_agent($value, array &$args, HandlerList $list)
{
if (!is_array($value)) {
$value = [$value];
}
$value = array_map('strval', $value);
array_unshift($value, 'aws-sdk-php/' . Sdk::VERSION);
$args['ua_append'] = $value;
$list->appendBuild(static function (callable $handler) use($value) {
return function (CommandInterface $command, RequestInterface $request) use($handler, $value) {
return $handler($command, $request->withHeader('User-Agent', implode(' ', array_merge($value, $request->getHeader('User-Agent')))));
};
});
}
