rb_ary_includes  3843 array.c            rb_define_method(rb_cArray, "include?", rb_ary_includes, 1);
rb_ary_includes  2518 hash.c         	if (rb_ary_includes(keys, key)) {
rb_ary_includes    73 include/ruby/intern.h VALUE rb_ary_includes(VALUE, VALUE);
rb_ary_includes  1892 variable.c     	if (!rb_ary_includes(ary, kval)) {