core-bundle/src/Controller/AbstractFragmentController.php
protected function getType(): string
    {
        if (isset($this->options['type'])) {
            return $this->options['type'];
        }

        $className = ltrim(strrchr(static::class, '\\'), '\\');

        if ('Controller' === substr($className, -10)) {
            $className = substr($className, 0, -10);
        }

        return Container::underscore($className);
    }
protected function getType(): string
    {
        if (isset($this->options['type'])) {
            return $this->options['type'];
        }

        $className = ltrim(strrchr(static::class, '\\'), '\\');

        if ('Controller' === substr($className, -10)) {
            $className = substr($className, 0, -10);
        }

        return Container::underscore($className);
    }
Returns the type from the class name.