new_contents: from ._base import Config
  
  class RatelimitConfig(Config):
  
      def __init__(self, args):
          super(RatelimitConfig, self).__init__(args)
          self.rc_messages_per_second = args.rc_messages_per_second
          self.rc_message_burst_count = args.rc_message_burst_count
  
      @classmethod
      def add_arguments(cls, parser):
          super(RatelimitConfig, cls).add_arguments(parser)
          rc_group = parser.add_argument_group("ratelimiting")
          rc_group.add_argument(
              "--rc-messages-per-second", type=float, default=0.2
              help="number of messages a client can send per second"
          )
          rc_group.add_argument(
              "--rc_messsage_burst_count", type=float, default=10
              help="number of message a client can send before being throttled"
          )
  
subject: Add ratelimiting config