code: func NewSystemChannel(support StandardChannelSupport, templator ChannelConfigTemplator, filters *RuleSet) *SystemChannel {
  	logger.Debugf("Creating system channel msg processor for channel %s", support.ChainID())
  	return &SystemChannel{
  		StandardChannel: NewStandardChannel(support, filters),
  		templator:       templator,
  	}
  }
docs: // NewSystemChannel creates a new system channel message processor.