code: func (p *partitions) createChannelsMapAndSublist(storeChannels map[string]*stores.ChannelLimits) {
  	p.channels = make([]string, 0, len(storeChannels))
  	p.sl = util.NewSublist()
  	for c := range storeChannels {
  		p.channels = append(p.channels, c)
  		// When creating the store, we have already checked that channel names
  		// were valid. So this call cannot fail.
  		p.sl.Insert(c, channelInterest)
  	}
  }
docs: // Creates the channels map based on the store's PerChannel map that was given.