pub fn natr_batch_with_kernel(
high: &[f64],
low: &[f64],
close: &[f64],
sweep: &NatrBatchRange,
k: Kernel,
) -> Result<NatrBatchOutput, NatrError>pub fn natr_batch_with_kernel(
high: &[f64],
low: &[f64],
close: &[f64],
sweep: &NatrBatchRange,
k: Kernel,
) -> Result<NatrBatchOutput, NatrError>