• Laravel-mongodb: v4.1.2
• Laravel: v 10.45.1
• php: 8.1

`use MongoDB\Laravel\Eloquent\Model;

class TestClass extends Model
{
protected $connection = 'mongodb';
protected $primaryKey = '_id';
protected $keyType = 'string';

}
`

Given the test model above, would it be necessary to have Transactions enabled to be able to obtain the ObjectId in the given way:

$test = new TestClass;
$test->save();
$test->refresh();

Doing this "$test->refresh()" always returns null, because the local instance ($test) cannot obtain the _id.

This may be common knowledge, but this has been driving me crazy, any help would be appreciated.