Bug: Autoload over Composer

[wingdu]

Hello,

i have try to load composer over autoload. That works but then its not possible to call the function on the normal way.

As example in a normal PHP Files works:
require_once(DIR . '../../vendor/autoload.php');

// Configure HTTP basic authorization: BasicAuth
$config = ClickSend\Configuration::getDefaultConfiguration()
->setUsername('USERNAME')
->setPassword('PASSWORD');

$apiInstance = new ClickSend\Api\FAXApi(new GuzzleHttp\Client(),$config);
$fax_message_list= new \ClickSend\Model\FaxMessage();
$fax_message_list->setSource("php");
$fax_message_list->setTo("+498954883877");
$fax_message_list->setCustomString("custom_string");
$fax_message_list->setFromEmail("rolf@netzwerkadmins.de");
// \ClickSend\Model\FaxMessageCollection | FaxMessageCollection model
$fax_message = new \ClickSend\Model\FaxMessageCollection();
$fax_message->setMessages([$fax_message_list]);
$fax_message->setFileUrl("https://s3-ap-southeast-2.amazonaws.com/clicksend-api-downloads/_public/_examples/document.pdf");

try {
$result = $apiInstance->faxSendPost($fax_message);
print_r($result);
} catch (Exception $e) {
echo 'Exception when calling FAXApi->faxSendPost: ', $e->getMessage(), PHP_EOL;
}

Here no error nothing:

In Codeigniter 4 you can place the same code in a function and you get a error messages that:

Class 'App\Controllers\ClickSend\Configuration' not found

[MGatner]

You need a preceding \ on the namespaced classes. E.g.:
$config = \ClickSend\Configuration::getDefaultConfiguration()