sb.add("signatures", mSignatures, false, true);
    public String toString() {        ZSoapSB sb = new ZSoapSB();        sb.beginStruct();        sb.add("name", mName);        sb.add("signatures", mSignatures, false, true);        sb.beginStruct("attrs");        for (Map.Entry<String, String> entry : mAttrs.entrySet()) {            sb.add(entry.getKey(), entry.getValue());        }        sb.endStruct();        sb.endStruct();        return sb.toString();    }