code: def dumps(obj, *args, **kwargs):
      
      kwargs['default'] = object2dict
  
      return json.dumps(obj, *args, **kwargs)
docs: Serialize a object to string
  
      Basic Usage:
  
      >>> import simplekit.objson
      >>> obj = {'name':'wendy'}
      >>> print simplekit.objson.dumps(obj)
  
  
      :param obj: a object which need to dump
      :param args: Optional arguments that :func:`json.dumps` takes.
      :param kwargs: Keys arguments that :py:func:`json.dumps` takes.
      :return: string