syntax_data: {"ast_node_type":"function","tokens":[{"end":60,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn get_mut(&mut self, id: HirId) -> Option<&mut V> {
context_before: impl<'a, V> LocalTableInContextMut<'a, V> {
context_after:         validate_hir_id_for_typeck_results(self.hir_owner, id);