syntax_data: {"ast_node_type":"function","tokens":[{"end":95,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn extend(&mut self, items: UnordItems<(HirId, V), impl Iterator<Item = (HirId, V)>>) {
context_after:         self.data.extend_unord(items.map(|(id, value)| {