return {};
  }
  return cast_op.getInputElementType()
      .cast<TypeAttr>()
      .getValue()
      .dyn_cast<quant::QuantizedType>();
}

class RemoveRawDataOp : public OpRewritePattern<TFRQuantRawDataOp> {
  using OpRewritePattern<TFRQuantRawDataOp>::OpRewritePattern;

 public:
  LogicalResult matchAndRewrite(TFRQuantRawDataOp raw_data_op,