old_contents: # Tai Sakuma <tai.sakuma@gmail.com>
  from ..roottree import BEventBuilder as BaseEventBuilder
  
  ##__________________________________________________________________||
  class EventBuilder(object):
      def __init__(self, config):
          self.baseBuilder = BaseEventBuilder(config)
          self.config = config
  
      def __repr__(self):
          return '{}(baseBuilder = {!r}, config = {!r})'.format(
              self.__class__.__name__,
              self.baseBuilder,
              self.config
          )
  
      def __call__(self):
          events = self.baseBuilder()
          events.component = self.config.component
          return events
  
  ##__________________________________________________________________||
  
new_contents: # Tai Sakuma <tai.sakuma@gmail.com>
  from ..roottree import BEventBuilder as BaseEventBuilder
  
  ##__________________________________________________________________||
  class EventBuilder(object):
      def __init__(self, config):
          self.baseBuilder = BaseEventBuilder(config)
          self.config = config
  
      def __repr__(self):
          return '{}(baseBuilder={!r}, config={!r})'.format(
              self.__class__.__name__,
              self.baseBuilder,
              self.config
          )
  
      def __call__(self):
          events = self.baseBuilder()
          events.component = self.config.component
          return events
  
  ##__________________________________________________________________||
  
subject: update __repr__() in EventBuilder