public function getExpirationDate(): \Lullabot\Mpx\DataService\DateTime\DateTimeFormatInterface
    {
        if (!$this->expirationDate) {
            return new NullDateTime();
        }

        return $this->expirationDate;
    }
public function getExpirationDate(): \Lullabot\Mpx\DataService\DateTime\DateTimeFormatInterface
    {
        if (!$this->expirationDate) {
            return new NullDateTime();
        }

        return $this->expirationDate;
    }
public function getExpirationDate ( ) : \ Lullabot \ Mpx \ DataService \ DateTime \ DateTimeFormatInterface { if ( ! $ this -> expirationDate ) { return new NullDateTime ( ) ; } return $ this -> expirationDate ; }
Returns the date that this content expires and is no longer available for playback.

@return \Lullabot\Mpx\DataService\DateTime\DateTimeFormatInterface
Returns the date that this content expires and is no longer available for playback .