@Override
    public void save(@NotNull DataOutput out, Map<HMember, Equations> value) throws IOException {
      DataInputOutputUtilRt.writeSeq(out, value.entrySet(), entry -> {
        HKeyDescriptor.INSTANCE.save(out, entry.getKey());
        saveEquations(out, entry.getValue());
      });
    }
@Override
    public void save(@NotNull DataOutput out, Map<HMember, Equations> value)