// quantized.
  auto new_call_op = rewriter.create<TF::XlaCallModuleOp>(
      call_op.getLoc(), call_op.getResultTypes(), call_op.getOperands(),
      call_op.getVersionAttr(), call_op.getModuleAttr(), call_op.getSoutAttr());
  new_call_op->setAttr(kEntryFuncAttrName,
                       rewriter.getStringAttr(new_ref_func_name.getValue()));
  new_call_op->setAttrs(call_op->getAttrs());