I am using Rust with cargo 1.80.1 and polars = "0.42.0", and I want to convert a polars Series of Strings to Vec<String> as more common type, which is to be used by my other functions without polars. For additional information, in Python pandas.Series, it is like this: ds.to_list().

I am a beginner to Rust and I could not find a solution. Here are similar posts but not help with my case.

1. How to convert a Series of Strings into an Array or Vec of Strings. It involves something about .lit() and the comments suggest group_by(). Irrelevant to my question.
2. How to get a Vec from polars Series or ChunkedArray?. It is about a Series of numbers, not of strings. One of their command suggests .utf8(), but I tried, this method is not available (anymore). And I cannot find anything about utf8() on https://docs.pola.rs, for the current version.

use polars::prelude::*;

fn my_func() -> Vec<String> {
    let ds: Series = Series::new("name", &vec!["apple", "orange", "banana"]);
    // Convert s to Vec<String>
    let result: Vec<String> = ds.str().unwrap(); // Not working, res type is &ChunkedArray<StringType>
    result  // It should be a vector of ["apple", "orange", "banana"].
}

Can anyone please help me? Thanks!