{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"||"}]}
        || if let hir::TyKind::FnPtr(fn_ptr_ty) = &self_ty.kind {
    matches!(&self_ty.kind, hir::TyKind::Tup([_]))
            fn_ptr_ty.decl.inputs.len() == 1