AsseticBundle\Configuration::assembleSetterNameFromConfigKey PHP Method

    protected function assembleSetterNameFromConfigKey($key)
    {
        $parts = explode('_', $key);
        $parts = array_map('ucfirst', $parts);
        $setter = 'set' . implode('', $parts);
        if (!method_exists($this, $setter)) {
            throw new Exception\BadMethodCallException('The configuration key "' . $key . '" does not ' . 'have a matching ' . $setter . ' setter method ' . 'which must be defined');
        }
        return $setter;
    }