syntax_data: {"ast_node_type":"variable","tokens":[{"end":75,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if let DefKind::Static { mutability, .. } = self.def_kind(def_id) {
context_before:     pub fn static_mutability(self, def_id: DefId) -> Option<hir::Mutability> {
context_after:             Some(mutability)