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# Description
Allows `polars last` to be used with group-by
```nu
> ❯ : [[a b c d]; [1 0.5 true Apple] [2 0.5 true Orange] [2 4 true Apple] [3 10 false Apple] [4 13 false Banana] [5 14 true Banana]] | polars into-df -s {a: u8, b: f32, c: bool, d: str} | polars group-by d | polars last | polars sort-by [a] | polars collect
╭───┬────────┬───┬───────┬───────╮
│ # │ d │ a │ b │ c │
├───┼────────┼───┼───────┼───────┤
│ 0 │ Orange │ 2 │ 0.50 │ true │
│ 1 │ Apple │ 3 │ 10.00 │ false │
│ 2 │ Banana │ 5 │ 14.00 │ true │
╰───┴────────┴───┴───────┴───────╯
```
# User-Facing Changes
- `polars last` can now be used with group-by expressions
Co-authored-by: Jack Wright <jack.wright@nike.com>
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.