src/Wuunder/Api/Config/ParcelshopConfig.php
public function get($key)
    {
        if (!isset($this->setFields[$key]))
            return null;

        return $this->setFields[$key];
    }
public function get($key)
    {
        if (!isset($this->setFields[$key]))
            return null;

        return $this->setFields[$key];
    }
Checks if the key is set, returns it if true

@param $key
@return $setFields