<module>/0 (locals=0, globals=2):
   0  MAKE_CLOSURE    0, 0      ; <fn dbl>
   1  STORE_GLOBAL    0
   2  MAKE_CLOSURE    1, 0      ; <fn main>
   3  STORE_GLOBAL    1
   4  LOAD_GLOBAL     1
   5  CALL            0
   6  POP
   7  HALT

dbl/1 (locals=1, globals=0):
   0  LOAD_LOCAL      0
   1  LOAD_LOCAL      0
   2  ADD
   3  RETURN

main/0 (locals=0, globals=0):
   0  LOAD_GLOBAL     0
   1  LOAD_CONST      0         ; 21
   2  CALL            1
   3  PRINT
   4  POP
   5  LOAD_CONST      1         ; None
   6  RETURN
