Function intRange

Example

> df.lazy()
>   .filter(pl.col("foo").lt(pl.intRange(0, 100)))
>   .collect()
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Generate an index column by using intRange in conjunction with :func:len.

 df = pl.DataFrame({"a": [1, 3, 5], "b": [2, 4, 6]})
   df.select(
   ...     pl.intRange(pl.len()).alias("index"),
   ...     pl.all(),
   ... )
   shape: (3, 3)
   ┌───────┬─────┬─────┐
   │ index ┆ a   ┆ b   │
   │ ---   ┆ --- ┆ --- │
   │ u32   ┆ i64 ┆ i64 │
   ╞═══════╪═════╪═════╡
   │ 0     ┆ 1   ┆ 2   │
   │ 1     ┆ 3   ┆ 4   │
   │ 2     ┆ 5   ┆ 6   │
   └───────┴─────┴─────┘
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