fix: Allow generic return type in contract queries

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (d1c69d8) 86.52% compared to head (56021f3) 86.66%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #256 +/- ## ========================================== + Coverage 86.52% 86.66% +0.13% ========================================== Files 24 24 Lines 1737 1755 +18 ========================================== + Hits 1503 1521 +18 Misses 234 234 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[jawoznia]

closing in favor of #264