return success();
  }
};

struct ConvertYield : public OpConversionPattern<TF::YieldOp> {
  using OpConversionPattern::OpConversionPattern;

  LogicalResult matchAndRewrite(
      TF::YieldOp op, OpAdaptor adaptor,
      ConversionPatternRewriter &rewriter) const override {
    rewriter.modifyOpInPlace(op,