original_string: private function getSourceById($sourceId = null)
      {
          if (null === $sourceId) {
              $sourceId = $this->getSourceId();
          }
          return $this->loader->getTracker()->getSource($sourceId);
      }
code: private function getSourceById($sourceId = null)
      {
          if (null === $sourceId) {
              $sourceId = $this->getSourceId();
          }
          return $this->loader->getTracker()->getSource($sourceId);
      }
code_tokens: private function getSourceById ( $ sourceId = null ) { if ( null === $ sourceId ) { $ sourceId = $ this -> getSourceId ( ) ; } return $ this -> loader -> getTracker ( ) -> getSource ( $ sourceId ) ; }
docstring: Load a source object
  
  @param int $sourceId
  @return \Gems_Tracker_Source_SourceInterface
docstring_tokens: Load a source object