ALIGN_BEGIN* = 0'i64
ALIGN_CENTER* = 1'i64
ALIGN_END* = 2'i64
proc alignment*(self: BoxContainer): int64 {.gcsafe, locks: 0.}
proc `alignment =`*(self: BoxContainer; val: int64) {.gcsafe, locks: 0.}
proc addSpacer*(self: BoxContainer; begin: bool) {.gcsafe, locks: 0.}