Symfony\Component\DependencyInjection\InterfaceInjector::getMethodCalls PHP Method

    public function getMethodCalls()
    {
        return $this->calls;
    }

 protected function addInterfaceInjector(InterfaceInjector $injector, \DOMElement $parent)
 {
     $interface = $this->document->createElement('interface');
     $interface->setAttribute('class', $injector->getClass());
     $this->addMethodCalls($injector->getMethodCalls(), $interface);
     $parent->appendChild($interface);
 }