executing
    1 N..... USE_LENGTH_UNITS(CANON_UNITS_MM)
    2 N..... SET_G5X_OFFSET(1, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000)
    3 N..... SET_G92_OFFSET(0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 0.0000)
    4 N..... SET_XY_ROTATION(0.0000)
    5 N..... SET_FEED_REFERENCE(CANON_XYZ)
    6 N..... ON_RESET()
    7 N..... MESSAGE(" before M400: call_level= 0.000000 remap_level=0.000000")
    8 N..... MESSAGE(" I should complain if I weren't called but I guess I can not do that")
    9 N..... MESSAGE("failing_epilog returning INTERP_ERROR")
A failed Python epilog returning INTERP_ERROR
o<mustbecalled>endsub
   10 N..... ON_RESET()