text: on.start = function start() {
    state.group = chix_group.recv.create()
    state.$ = null
    state.group.on('group', function groupHandler(group) {
      var p = state.$.create(group.map((p) => p.read(p.owner)))
      p.removeMeta('chix-group')
      output({out: p})
    })
  }
  
  on.input.in = function () {
    state.group.add($.get('in'))
    state.$ = $
  };
  
  on.input.xin = function () {
    state.group.receive($.get('xin'))
    state.$ = $
  };
  