pub fn willr_batch_slice(
high: &[f64],
low: &[f64],
close: &[f64],
sweep: &WillrBatchRange,
kern: Kernel,
) -> Result<WillrBatchOutput, WillrError>pub fn willr_batch_slice(
high: &[f64],
low: &[f64],
close: &[f64],
sweep: &WillrBatchRange,
kern: Kernel,
) -> Result<WillrBatchOutput, WillrError>