[FEA] Support `Expr.struct.with_fields` in cudf_polars
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cudf-polars
feature request
Python
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- C++
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Description
This expression is currently not supported when using cudf_polars: https://docs.pola.rs/api/python/dev/reference/expressions/api/polars.Expr.struct.with_fields.html
To support this feature:
1. This expression will need to be implemented in Polars: https://github.com/pola-rs/polars/blob/8011fa34e0c5f1270ef52e2d3b0b2946bb2faa72/crates/polars-python/src/lazyframe/visitor/expr_nodes.rs#L935
2. Then once https://github.com/rapidsai/cudf/pull/19052 is merged, implemented in `StructFunction`
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