{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"Some(sp)"}]}
                    Some(sp) => (sp.with_ctxt(attr_span.ctxt()), sp.from_expansion()),
                let (span, from_expansion) = match attr.value_span() {
                    None => (attr_span, attr_span.from_expansion()),