{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"if"}]}
    if main_fn_generics.count() != 0 || !main_fnsig.bound_vars().is_empty() {
    let main_fn_predicates = tcx.predicates_of(main_def_id);
        let generics_param_span = main_fn_generics_params_span(tcx, main_def_id);