Code:

#include <seqan3/argument_parser/all.hpp>

int main(int argc, char ** argv)
{
    seqan3::argument_parser parser{"App", argc, argv, seqan3::update_notifications::off};

    parser.info.author = "Foo Bar";
    parser.info.email = "foobar@example.com";
    parser.info.short_copyright = "BSD 3-Clause License";

    try
    {
        parser.parse();
    }
    catch (seqan3

As analyzing biological data with BioFSharp involves a lot of scripting, optional pretty printers help a lot when looking at results directly in the fsi window. This should be especially easy to add for parsing libraries that can already write the correct file format. A basic pretty printer for biocollections is already impelemented.
Here are some formats from the top of my head, feel free to add