code: def _getConfiguration(self):
          
          configDirectoryPath = os.path.join("application", "config")
          config = Config(configDirectoryPath)
          configData = config.getData()
  
          # setting application parameters
          reactor.suggestThreadPoolSize(
              int(configData["performance"]["threadPoolSize"])
          )
  
          return configData
docs: Load application configuration files.
  
          :return: <dict>