{'field': 'year', 'type': 'temporal'}
{'field': 'miles', 'type': 'quantitative'}
{'field': 'gas', 'type': 'quantitative'}
{'field': 'side', 'type': 'nominal'}
Generate 5 vis, time last 0.147 s.

Cost:18.790

Cost:18.800

Cost:18.800

Cost:18.810

Cost:18.810