rb_enumeratorize_with_size  248 enumerator.c       enumerator = rb_enumeratorize_with_size(obj, meth, argc, argv, 0);
rb_enumeratorize_with_size  401 enumerator.c       return rb_enumeratorize_with_size(obj, meth, argc, argv, 0);
rb_enumeratorize_with_size  228 include/ruby/intern.h VALUE rb_enumeratorize_with_size(VALUE, VALUE, int, const VALUE *, rb_enumerator_size_func *);
rb_enumeratorize_with_size  231 include/ruby/intern.h     rb_enumeratorize_with_size(obj, id, argc, argv, (rb_enumerator_size_func *)(size_fn))
rb_enumeratorize_with_size  234 include/ruby/intern.h     rb_enumeratorize_with_size((obj), ID2SYM(rb_frame_this_func()), \