auto storageCount = ${len(instances)}; const std::array indices = {{ % for g in instancegroups: { % for i in g.members: {Index::key_type{${i[0]}, ${i[2]}, ${i[3]}}, ${i[5]}}, % endfor }, % endfor }}; const std::array, ${len(watches)}> watches = {{ % for w in watches: std::tuple{"${w.datatype}", ${w.instances}}, % endfor }};