Function coverm::coverage_printer::print_sparse_cached_coverage_taker

pub fn print_sparse_cached_coverage_taker<'a>(
    cached_coverage_taker: &'a CoverageTakerType<'a>, 
    print_stream: &mut dyn Write, 
    reads_mapped_per_sample: Option<&Vec<ReadsMapped>>, 
    columns_to_normalise: &Vec<usize>
)