Lovense Connect Desktop App may leave out some fields (like battery)

[qdot]

Describe the bug stack from user on macOS Lovense Connect:

{"logType":"process","location":"R","message":"Process Log: {\"timestamp\":\"Jul 01 02:33:31.360\",\"level\":\"ERROR\",\"fields\":{\"message\":\"thread 'tokio-runtime-worker' panicked at 'calledResult::unwrap()on anErrvalue: Error(\\\"missing fieldbattery\\\", line: 1, column: 508)': C:\\\\Users\\\\runneradmin\\\\.cargo\\\\registry\\\\src\\\\github.com-1ecc6299db9ec823\\\\buttplug-4.0.3\\\\src\\\\server\\\\comm_managers\\\\lovense_connect_service\\\\lovense_connect_service_comm_manager.rs:201\\n 0: <unknown>\\n 1: <unknown>\\n 2: <unknown>\\n 3: <unknown>\\n 4: <unknown>\\n 5: <unknown>\\n 6: <unknown>\\n 7: hid_write\\n 8: hid_write\\n 9: <unknown>\\n 10: <unknown>\\n 11: <unknown>\\n 12: <unknown>\\n 13: <unknown>\\n 14: <unknown>\\n 15: <unknown>\\n 16: <unknown>\\n 17: <unknown>\\n 18: <unknown>\\n 19: <unknown>\\n 20: <unknown>\\n 21: <unknown>\\n 22: <unknown>\\n 23: BaseThreadInitThunk\\n 24: RtlUserThreadStart\\n\",\"log.target\":\"panic\",\"log.module_path\":\"log_panics\",\"log.file\":\"C:\\\\Users\\\\runneradmin\\\\.cargo\\\\registry\\\\src\\\\github.com-1ecc6299db9ec823\\\\log-panics-2.0.0\\\\src\\\\lib.rs\",\"log.line\":67},\"target\":\"panic\",\"span\":{\"name\":\"Lovense Connect Service Scanner\"},\"spans\":[{\"id\":3,\"name\":\"Buttplug Server Message\"},{\"name\":\"Lovense Connect Service Scanner\"}]}\n","level":"info","timestamp":"2021-07-01T00:33:31.360Z"}

Looks like the battery field may be optional?