class TEST1 feature formatter: TEST1 is do Result := Current end composed_path_1 (a_r: ARRAY [STRING]): STRING is -- do if a_r /= Void and a_r.valid_index (1) then Result := a_r.item (1) end end composed_path_2 (a_r: TUPLE [STRING]): STRING is -- do if a_r /= Void and a_r.valid_index (1) then Result ?= a_r.item (1) end end end