{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":".to(fn_ptr_ty.decl.inputs.last().unwrap().span);"}]}
                    .to(fn_ptr_ty.decl.inputs.last().unwrap().span);
                    }
                    let plural = fn_ptr_ty.param_idents.len() - index != 1;