Dev polars

[armgilles]

WIP

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 80.62016% with 25 lines in your changes missing coverage. Please review.

Project coverage is 70.03%. Comparing base (d4839e7) to head (25bc431).

Files with missing lines	Patch %	Lines
src/vcub_keeper/create/creator.py	60.00%	14 Missing :warning:
src/vcub_keeper/reader/reader.py	62.96%	10 Missing :warning:
src/vcub_keeper/ml/cluster.py	80.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #158 +/- ## =========================================== + Coverage 43.10% 70.03% +26.92% =========================================== Files 10 10 Lines 457 317 -140 =========================================== + Hits 197 222 +25 + Misses 260 95 -165 ```

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[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #158 will improve performances by ×3.1

_{Comparing dev_polars (25bc431) with master (d4839e7)}

Summary

⚡ 6 improvements

🆕 7 new benchmarks

Benchmarks breakdown

	Benchmark	master	dev_polars	Change
⚡	test_benchmark_get_consecutive_no_transactions_out	19.5 ms	1.9 ms	×10
🆕	test_benchmark_get_consecutive_no_transactions_out_big	N/A	61.8 ms	N/A
⚡	test_benchmark_get_transaction_all	7.2 ms	1.5 ms	×4.7
🆕	test_benchmark_get_transaction_all_big	N/A	46.9 ms	N/A
⚡	test_benchmark_get_transaction_in	8.4 ms	1.7 ms	×5.1
🆕	test_benchmark_get_transaction_in_big	N/A	47.1 ms	N/A
⚡	test_benchmark_get_transaction_out	8.2 ms	1.8 ms	×4.6
🆕	test_benchmark_get_transaction_out_big	N/A	51 ms	N/A
⚡	test_benchmark_process_data_cluster	12.9 ms	4.2 ms	×3.1
🆕	test_benchmark_process_data_cluster_big	N/A	255.9 ms	N/A
🆕	test_benchmark_pipepline_transform	N/A	180.4 ms	N/A
🆕	test_benchmark_pipepline_transform_big	N/A	2 s	N/A
⚡	test_benchmark_transf_json_to_df	158.9 ms	26.3 ms	×6