{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"hir::Node::LetStmt(hir::LetStmt"}]}
                                hir::Node::LetStmt(hir::LetStmt { ty: Some(ty), .. }) => {
                            match self.tcx.parent_hir_node(pat.hir_id) {
                                    primary_span = ty.span;