public function getTotalSavedBytes()
    {
        $initialStep = array_first($this->referencePoints);
        $lastStep = array_last($this->referencePoints);

        return $initialStep->getBytes() - $lastStep->getBytes();
    }
public function getTotalSavedBytes()
    {
        $initialStep = array_first($this->referencePoints);
        $lastStep = array_last($this->referencePoints);

        return $initialStep->getBytes() - $lastStep->getBytes();
    }
public function getTotalSavedBytes ( ) { $ initialStep = array_first ( $ this -> referencePoints ) ; $ lastStep = array_last ( $ this -> referencePoints ) ; return $ initialStep -> getBytes ( ) - $ lastStep -> getBytes ( ) ; }
Get the total saved bytes in bytes.

@return int
Get the total saved bytes in bytes .