{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"CompletionItemRefMode::Reference(Mutability::Shared)"}]}
            CompletionItemRefMode::Reference(Mutability::Shared) => 0u8,
        let discriminant = match ref_mode {
            CompletionItemRefMode::Reference(Mutability::Mut) => 1u8,