lib/Jejik/MT940/Parser/AbstractParser.php
protected function openingBalance($text)
    {
        if ($line = $this->getLine('60F|60M', $text)) {
            return $this->balance($this->reader->createOpeningBalance(), $line);
        }
    }
protected function openingBalance($text)
    {
        if ($line = $this->getLine('60F|60M', $text)) {
            return $this->balance($this->reader->createOpeningBalance(), $line);
        }
    }
Get the opening balance

@param mixed $text
@return \Jejik\MT940\Balance