| polars agg | Performs a series of aggregations from a group-by.
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| polars collect | Collect lazy dataframe into eager dataframe.
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| polars explode | Explodes a dataframe or creates a explode expression.
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| polars fetch | Collects the lazyframe to the selected rows.
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| polars fill-nan | Replaces NaN values with the given expression.
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| polars fill-null | Replaces NULL values with the given expression.
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| polars filter | Filter dataframe based in expression.
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| polars filter-with | Filters dataframe using a mask or expression as reference.
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| polars flatten | An alias for polars explode.
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| polars group-by | Creates a group-by object that can be used for other aggregations.
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| polars into-lazy | Converts a dataframe into a lazy dataframe.
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| polars join | Joins a lazy frame with other lazy frame.
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| polars join-where | Joins a lazy frame with other lazy frame based on conditions.
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| polars median | Median value from columns in a dataframe or creates expression for an aggregation
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| polars over | Compute expressions over a window group defined by partition expressions.
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| polars quantile | Aggregates the columns to the selected quantile.
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| polars rename | Rename a dataframe column.
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| polars save | Saves a dataframe to disk. For lazy dataframes a sink operation will be used if the file type supports it (parquet, ipc/arrow, csv, and ndjson).
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| polars select | Selects columns from lazyframe.
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| polars shift | Shifts the values by a given period.
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| polars sort-by | Sorts a lazy dataframe based on expression(s).
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| polars unique | Returns unique values from a dataframe.
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| polars with-column | Adds a series to the dataframe.
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