code: private function getMeta($method, $meta)
      {
          $firePhpMeta = array(
              'Type' => isset($this->firephpMethods[$method])
                  ? $this->firephpMethods[$method]
                  : $this->firephpMethods['log'],
              // Label
              // File
              // Line
              // Collapsed  (for group)
          );
          if (isset($meta['file'])) {
              $firePhpMeta['File'] = $meta['file'];
              $firePhpMeta['Line'] = $meta['line'];
          }
          if (\in_array($method, array('group','groupCollapsed'))) {
              $firePhpMeta['Collapsed'] = $method == 'groupCollapsed'
                  // yes, strings
                  ? 'true'
                  : 'false';
          }
          return $firePhpMeta;
      }
docs: Initialize firephp's meta array
  
  @param string $method PHPDebugConsole method
  @param array  $meta   PHPDebugConsole meta values
  
  @return array