return self.rooms.map(it.one_line()).join(',')

	return self.rooms.map(it.str()).join(',')

pub fn (self Room) one_line() string {

pub fn (self Room) str() string {

	println('sync_rooms: matrix db_rooms ${db_rooms.map(it.one_line())}')
	println('sync_rooms: matrix joined_rooms ${self.matrix.joined_rooms.rooms.map(it.one_line())}')

	println('sync_rooms: matrix db_rooms $db_rooms')
	println('sync_rooms: matrix joined_rooms ${self.matrix.joined_rooms}')

	println('sync_rooms: matrix needs_to_join ${needs_to_join.map(it.one_line())}')

	println('sync_rooms: matrix needs_to_join ${needs_to_join.map(it.str())}')