Queue*[T] = ref object
  chunkSize: int
  size: int
  list: DoublyLinkedList[QueueChunk[T]]

proc newQueue*[T](chunkSize = 4096): Queue[T]

proc len*(queue: Queue): int

proc pushBackMany*[T](queue: Queue[T]; items: ConstView[T])

proc pushBack*[T](queue: Queue[T]; item: T)

proc peekFrontMany*[T](queue: Queue[T]): ConstView[T]

proc popFront*[T](queue: Queue[T]; count = 1)

proc `$`*[T](queue: Queue[T]): string