public function getTypeNames()
    {
        $names = $this->factories->ids();
        if ([] !== $fallback = $this->fallbackFactory->getIds()) {
            $names = array_unique(array_merge($fallback, $names));
        }

        return $names;
    }
public function getTypeNames()
    {
        $names = $this->factories->ids();
        if ([] !== $fallback = $this->fallbackFactory->getIds()) {
            $names = array_unique(array_merge($fallback, $names));
        }

        return $names;
    }
public function getTypeNames ( ) { $ names = $ this -> factories -> ids ( ) ; if ( [ ] !== $ fallback = $ this -> fallbackFactory -> getIds ( ) ) { $ names = array_unique ( array_merge ( $ fallback , $ names ) ) ; } return $ names ; }
Obtain the list of registered type names.

@return array
Obtain the list of registered type names .