function useStashCalls (api: ApiPromise, stashId: string) {
  const params = useMemo(() => [stashId], [stashId]);
  const balancesAll = useCall<DeriveBalancesAll>(api.derive.balances?.all, params);
  const stakingAccount = useCall<DeriveStakingAccount>(api.derive.staking.account, params);
  const spanCount = useSlashingSpans(stashId);