ref: 253107e36cdb715a21c1fc47cd119702f1a11285
dir: /src/print.h/
#pragma once void sl_print(sl_ios *f, sl_v v); void print_traverse(sl_v v); void sl_print_chr(sl_ios *f, char c); void sl_print_str(sl_ios *f, const char *s); void sl_print_child(sl_ios *f, sl_v v);