Clickup File Attachment via API

example.php

$yourApiToken = 'your-api-token';

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "https://api.clickup.com/api/v2/task/{task_id}/attachment?custom_task_ids=&team_id=");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, FALSE);

curl_setopt($ch, CURLOPT_POST, TRUE);

$filepath = '/path/to/file';
$file = curl_file_create($filepath, 'image/png', 'filename');

curl_setopt(
  $ch,
  CURLOPT_POSTFIELDS,
  [
    'attachment' => $file,
  ]
);

curl_setopt($ch, CURLOPT_HTTPHEADER, array(
  "Authorization: {$yourApiToken}",
  "Content-Type: multipart/form-data"
));

$response = curl_exec($ch);
curl_close($ch);

var_dump($response);

4/ Test with this line $file = curl_file_create($file_path, $file_type, $file_name ); instead of your version, and note that this one includes the file type which in your case should be image/png if I am not mistaken

thank you
at least I have it working with curl right now

but maybe someone made it working with GuzzleHttp?
I am using:

        $data['multipart'] = [
            [
                'name'     => 'attachment',
                'contents' => Utils::tryFopen(storage_path('app/public/image.png'), 'r'),
            ]
        ];

and i tried fopen() and file_get_content() for 'contents'

but it always:
'{"err":"No attachment supplied","ECODE":"ATTCH_039"}'

I am using Guzzle for all other requests
so, please, let me know with an example