Function boolean_scan_read 

pub fn boolean_scan_read<T>(
    dims: [usize; 3],
    seed: Seed<'_>,
    direction: Direction,
    checked: bool,
    input: Read<'_>,
    output: &mut Buffer,
    run: &dyn Fn(&[T], [usize; 3], Option<&[T]>, &mut Vec<bool>) -> Result<(), Error>,
) -> Result<(), Error>
where
    T: Cast,
    bool: Source<T>,

A Boolean-result scan with its raw seed and chunk carries read at the input’s numeric type.