dt_lite_iso8601  8368 ext/date/date_core.c     return dt_lite_iso8601(argc, argv, self);
dt_lite_iso8601  9591 ext/date/date_core.c     rb_define_method(cDateTime, "iso8601", dt_lite_iso8601, -1);
dt_lite_iso8601  9592 ext/date/date_core.c     rb_define_method(cDateTime, "xmlschema", dt_lite_iso8601, -1);