syntax_data: {"ast_node_type":"function","tokens":[{"end":92,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn deref_pat_borrow_mode(&self, pointer_ty: Ty<'_>, inner: &hir::Pat<'_>) -> ByRef {
context_before:     /// in this case, we return `ByRef::No`.
context_after:         if pointer_ty.is_box() {