// Create a new if op with new operands and updated result types.
    auto converted = rewriter.create<TF::IfOp>(
        op.getLoc(), result_types, adaptor.getOperands(), op->getAttrs());
    converted->removeAttr("T");
    (void)UpdateFunctionTypesForIfOp(rewriter, converted, adaptor.getOperands(),
                                     tensor_list_args, resized_tensor_lists,
                                     result_types);