{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"stream.into_bridge(&mut"}]}
        stream.into_bridge(&mut |first, second| {
    ) -> Vec<bridge::TokenTree<Self::TokenStream, Self::Span, Self::Symbol>> {
            server::Span::join(self, first, second).unwrap_or(first)