{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"tcx.sess.dcx().emit_err(errors::PassFnItemToVariadicFunction"}]}
                        tcx.sess.dcx().emit_err(errors::PassFnItemToVariadicFunction {
                        let fn_item_spa = arg.span;
                            span: fn_item_spa,