public function get($identifier, $default = null, $singleAsArray = false)
{
if (!array_key_exists($identifier, $this->identifiers)) {
return $default;
}
if (is_array($this->identifiers[$identifier]) && 1 === count($this->identifiers[$identifier]) && $singleAsArray === false) {
return array_values($this->identifiers[$identifier])[0];
}
return $this->identifiers[$identifier];
}