src/Base/Logger/StdioLogger.php
private function getCalleeData($trace, $pos = 0) {
        $traceRow = isset($trace[$pos]) ? $trace[$pos] : end($trace);
        $file = isset($traceRow['file']) ? $traceRow['file'] : '[internal function]';
        $line = isset($traceRow['line']) ? '#' . $traceRow['line'] : '';
        $str = $file . " " . $line;
        return $str;
    }
private function getCalleeData($trace, $pos = 0) {
        $traceRow = isset($trace[$pos]) ? $trace[$pos] : end($trace);
        $file = isset($traceRow['file']) ? $traceRow['file'] : '[internal function]';
        $line = isset($traceRow['line']) ? '#' . $traceRow['line'] : '';
        $str = $file . " " . $line;
        return $str;
    }
Get callee data from backtrace array
@param array $trace
@param int $pos
@return string