@Override
 public String encodeAsResXmlValue() {
   return ResXmlEncoders.encodeAsXmlValue(mRawValue);
 }
 @Override
 public String encodeAsResXmlItemValue() {
   return ResXmlEncoders.enumerateNonPositionalSubstitutionsIfRequired(
       ResXmlEncoders.encodeAsXmlValue(mRawValue));
 }