Function rest_merklized_state_service_get_latest_fee_balance 

async fn rest_merklized_state_service_get_latest_fee_balance<S>(
    __arg0: State<Arc<S>>,
    headers: HeaderMap,
    __arg2: Query<GetLatestFeeBalanceRequest>,
) -> Result<Json<FeeBalanceResponse>, RestError>
where
    S: MerklizedStateService + Send + Sync + 'static,

GetLatestFeeBalance - JSON endpoint.

GET /v2/merklized-state/fee/balance