Send Multiple Images in one call with IDs

[Trixpua]

I am trying to send multiple images with just one api call, but the result is a empty json foreach image I sent.

The code that I am using is:

foreach ($imagBase64 as $key => $imgbase64) {
    $input[$key] = new DarrynTen\Clarifai\Entity\Input();
    $input[$key]->setImage($imgbase64)->isEncoded()->setId($key);
}

$inputResult = $clarifai->getInputRepository()->add($input);


$inputResult = $clarifai->getInputRepository()->get();

$results = json_decode(json_encode($inputResult));

var_dump($results);

If I send each image in an individual API Call using the following code I get the result:

foreach ($imagBase64 as $key => $imgbase64) {
    $modelResult[$key] = $clarifai->getModelRepository()->predictEncoded(
            $imgbase64, \DarrynTen\Clarifai\Repository\ModelRepository::GENERAL
    );
}

foreach ($modelResult as $key => $result) {
    $image[$key] = json_decode(json_encode($result));
}

What I am doing wrong? I think maybe I need to set a ModelRepository, but I don't find a funtion to do this in documentation.