def METHOD_NAME(self, keywords, custom_converters):
    type_docs = {}
    for kw in keywords:
        for arg in kw.args:
            kw.type_docs[arg.name] = {}
            for type_info in self._yield_type_info(arg.type):
                type_doc = TypeDoc.for_type(type_info.type, custom_converters)
                if type_doc:
                    kw.type_docs[arg.name][type_info.name] = type_doc.name
                    type_docs.setdefault(type_doc, set()).add(kw.name)
    for type_doc, usages in type_docs.items():
        type_doc.usages = sorted(usages, key=str.lower)
    return set(type_docs)