import tables, locks, threadpool

var hlock: Lock
var chats {.guard: hlock.}: Table[int64, int64]

template lock(a: Lock; body: stmt): auto =
  a.acquire
  defer: a.release
  {.locks: [a].}:
    body

proc test() =
  lock hlock:
    chats[1] = 2

proc main() =
  lock hlock:
    chats = initTable[int64, int64]()
  spawn test()

main()