protected function keyToNormalizeMethod($key, $prefix)
    {
        $arrayKey = "$prefix:$key";

        if (!isset($this->_methodCache[$arrayKey])) {

            $method = $prefix . ucfirst(Type::camelCase(str_replace([' ', '.'],'_', $key)));

            $this->_methodCache[$arrayKey] = method_exists($this, $method) ? $method : false;

        }

        return $this->_methodCache[$arrayKey];

    }