Function load_class_with_options 

pub fn load_class_with_options(name: &str, after: Tokens) -> Result<()>

Perl: LoadClass($name, withoptions => 1) — load a class passing the caller’s class options through to the child. Reads class_options from state (populated by the outer \documentclass invocation) and forwards those as the child’s options list, matching Perl Package.pm LoadClass’s withoptions branch.