How to get the wallet version by JSON-RPC API?

[d3y]

We are using v2.1.0 version of the wallet.
Through the documentation (https://github.com/HcashOrg/hcd/blob/master/docs/json_rpc_api.md), I didn't find an api that introduced the local wallet version.
I need to get tthe wallet version to monitor whether the wallet needs to be updated.