| polars concat-str      | any                   | Creates a concat string expression.                                                              |                         |
| polars concatenate     | dataframe             | Concatenates strings with other array.                                                           |                         |
| polars contains        | dataframe             | Checks if a pattern is contained in a string.                                                    |                         |
| polars count           | expression            | Creates a count expression.                                                                      |                         |
| polars count-null      | dataframe             | Counts null values.                                                                              |                         |
| polars cumulative      | dataframe             | Cumulative calculation for a series.                                                             |                         |
| polars datepart        | expression            | Creates an expression for capturing the specified datepart in a column.                          |                         |
| polars drop            | dataframe             | Creates a new dataframe by dropping the selected columns.                                        | drop                    |
| polars drop-duplicates | dataframe             | Drops duplicate values in dataframe.                                                             |                         |
| polars drop-nulls      | dataframe             | Drops null values in dataframe.                                                                  |                         |
| polars dummies         | dataframe             | Creates a new dataframe with dummy variables.                                                    |                         |
| polars explode         | expression, dataframe | Explodes a dataframe or creates a explode expression.                                            |                         |
| polars expr-not        | expression            | Creates a not expression.                                                                        |                         |
| polars fetch           | dataframe             | Collects the lazyframe to the selected rows.                                                     |                         |
| polars fill-nan        | dataframe             | Replaces NaN values with the given expression.                                                   |                         |
| polars fill-null       | dataframe             | Replaces NULL values with the given expression.                                                  |                         |
| polars filter          | dataframe             | Filter dataframe based in expression.                                                            |                         |
| polars filter-with     | dataframe             | Filters dataframe using a mask or expression as reference.                                       |                         |
| polars first           | expression, dataframe | Show only the first number of rows or create a first expression                                  | first                   |
| polars flatten         | expression, dataframe | An alias for polars explode.                                                                     |                         |
| polars get             | dataframe             | Creates dataframe with the selected columns.                                                     | get                     |
| polars get-day         | dataframe             | Gets day from date.                                                                              |                         |
| polars get-hour        | dataframe             | Gets hour from date.                                                                             |                         |