Nette\DI\Config\Loader::getDependencies PHP Method

    public function getDependencies()
    {
        return array_unique($this->dependencies);
    }

 /**
  * Adds new configuration from file.
  * @return self
  */
 public function loadConfig(string $file) : self
 {
     $loader = new Config\Loader();
     $this->addConfig($loader->load($file));
     $this->addDependencies($loader->getDependencies());
     return $this;
 }