Introduce teal_data class #1486

All 371 tests pass in 30s

    1 files ±0   28 suites ±0 30s ⏱️ ±0s
371 tests ±0 371 ✔️ ±0 0 💤 ±0 0 ❌ ±0
845 runs ±0 845 ✔️ ±0 0 💤 ±0 0 ❌ ±0

Results for commit a78ffaa. ± Comparison against earlier commit 39746f5.