partial modifier_keys
xkb_symbols "super_hyper" {
	key <MDSW> {
		type[1] = "TWO_LEVEL",
		symbols[1] = [ Super_L, Hyper_L ]
	};
	modifier_map Mod3 { <MDSW> };
};
xkb_symbols "meta" {
	key <META> {
		type[1] = "ONE_LEVEL",
		symbols[1] = [ Meta_L ]
	};
	modifier_map Mod3 { <META> };
};