mut alias := ''
  for s in data['invite_room_state'].arr() {
    state := s.as_map()
    if state['type'].str() == 'm.room.canonical_alias' {
      alias = state['content'].as_map()['alias'].str()
    }
    if state['type'].str() == 'm.room.member' {
      if alias.len == 0 {
        alias = state['content'].as_map()['sender'].str()
      }
    }
  }
  return alias

	mut alias := ''
	for s in data['invite_room_state'].arr() {
		state := s.as_map()
		mtype := state['type'].str()
		println("invite_by checking type $mtype in $state")
		if mtype == 'm.room.canonical_alias' {
			alias = state['content'].as_map()['alias'].str()
		}
		if mtype == 'm.room.member' {
			if alias.len == 0 {
				alias = state['content'].as_map()['sender'].str()
			}
		}
	}
	if alias.len == 0 {
		println('invite_by: warning no inviter found')
	}
	return alias

				println("out_chan len $self.out.len cap $self.out.cap")

				println('out_chan len $self.out.len cap $self.out.cap')

				println("matrix invite invited by $room_alias")

				println('matrix invite invited by $room_alias')

			//self.matrix.joined_rooms_sync()

			// self.matrix.joined_rooms_sync()