final public function transaction(?string $version = null): Contracts\Bill\Transaction
    {
        return $this->uses('Bill.Transaction', $version);
    }
final public function transaction(?string $version = null): Contracts\Bill\Transaction
    {
        return $this->uses('Bill.Transaction', $version);
    }
final public function transaction ( ? string $ version = null ) : Contracts \ Bill \ Transaction { return $ this -> uses ( 'Bill.Transaction' , $ version ) ; }
Get transaction resource.

@param  string|null  $version

@return \Billplz\Contracts\Bill\Transaction
Get transaction resource .