public function testToArray()
{
$expected = [ConfigEnum::ID => '', ConfigEnum::KEY => ''];
$this->assertEquals($expected, $this->credentials->toArray());
}
/**
* @param bool $includeNull = false
* @return array
*/
public function toArray($includeNull = false)
{
$array = parent::toArray($includeNull);
$credentials = $this->credentials->toArray($includeNull);
return array_merge($credentials, $array);
}