Function polars::prelude::arity::unary_kernel   
source ยท pub fn unary_kernel<T, V, F, Arr>(
    ca: &ChunkedArray<T>,
    op: F
) -> ChunkedArray<V>where
    T: PolarsDataType,
    V: PolarsDataType<Array = Arr>,
    Arr: Array,
    F: FnMut(&<T as PolarsDataType>::Array) -> Arr,Expand description
Applies a kernel that produces Array types.