pub trait DataFrameIsSorted {
// Required method
fn is_sorted(
&self,
by: &[PlSmallStr],
descending: &[bool],
nulls_last: &[bool],
) -> PolarsResult<bool>;
}pub trait DataFrameIsSorted {
// Required method
fn is_sorted(
&self,
by: &[PlSmallStr],
descending: &[bool],
nulls_last: &[bool],
) -> PolarsResult<bool>;
}