Add wallet query parameter for summary or add an identifier for different types of wallet entries

Would it be possible for you to add a query parameter, such that we can query on the summary, or add an identifier field that can be queried?

I want to query my tax refunds, such that I can build my own graphs based on that.

That is of course already possible, but would be much better if I do not have to filter all wallet entries and could instead rely on the API to only return the data that I need to process.

Thanks