dfr fetch for lazyframe

collects the lazyframe to the selected rows.

Signature

> dfr fetch

Examples

Fetch a rows from the dataframe

> [[a b]; [6 2] [4 2] [2 2]] | dfr into-df | dfr fetch 2
╭───┬───┬───╮
│ # │ a │ b │
├───┼───┼───┤
│ 0 │ 6 │ 2 │
│ 1 │ 4 │ 2 │
╰───┴───┴───╯