Find rows with min/max values in another column in a single line in Polars v1.37.0

Previously, to extract a row with the minimum or maximum value relative to another column, you usually had to do sorting, groupby, or set up more complex filters.

In Polars v1.37.0, the min_by and max_by expression methods have been introduced. They find the minimum or maximum value for any column with a single, understandable expression.

To update and get min_by/max_by:
pip install -U polars

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