Constant CLASS_DOC_LINES_MARKER 

pub(crate) const CLASS_DOC_LINES_MARKER: &str = ".__MX_CLASS_DOC_LINES__";

The line of ClassWrapper::head where the class’s roxygen block takes the ClassWrapper::class_doc_lines of every impl block of the type. Spelled the same as miniextendr_api::registry::CLASS_DOC_LINES_MARKER, which the wrapper writer replaces.