1. addr and as asm
    2. bind block break
    3. case cast concept const continue converter
    4. defer discard distinct div do
    5. elif else end enum except export
    6. finally for from func
    7. let
    8. macro method mixin mod
    9. nil not notin
    10. object of or out
    11. proc ptr
    12. raise ref return
    13. template try tuple type
    14. using
    15. var
    16. when while
    17. xor
    18. yield