{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"self.errors.push(PatternError::UnexpectedType);"}]}
                        self.errors.push(PatternError::UnexpectedType);
                        never!("unexpected type for tuple pattern: {:?}", ty);
                        return Pat { ty: ty.clone(), kind: PatKind::Wild.into() };