mrb_value mrb_check_array_type(mrb_state *mrb, mrb_value ary) { return mrb_check_convert_type(mrb, ary, MRB_TT_ARRAY, "Array", "to_ary"); }
mrb_value mrb_check_hash_type(mrb_state *mrb, mrb_value hash) { return mrb_check_convert_type(mrb, hash, MRB_TT_HASH, "Hash", "to_hash"); }