// default value of the operand needs to be used.
    if (operand.index() >= call_op.getNumOperands()) {
      auto attr_name = signature.getArgAttrOfType<StringAttr>(
          operand.index(), kAttrArgumentNameAttr);
      auto attr_value =
          signature.getArgAttr(operand.index(), kAttrArgumentDefaultAttr);
      arg_attrs->push_back(
          rewriter.getNamedAttr(attr_name.getValue(), attr_value));
      continue;

        new_operands.push_back(build_list_op.getOut());
      } else {
        auto attr_name = compose_func.getArgAttrOfType<StringAttr>(
            arg.index(), kAttrArgumentNameAttr);
        auto attribute = op->getAttr(attr_name.getValue());
        if (!attribute) {
          attribute =
              compose_func.getArgAttr(arg.index(), kAttrArgumentDefaultAttr);
        }

        all_attrs.insert(attr.getName().strref());
      }
      for (const auto& operand : llvm::enumerate(getArgumentTypes())) {
        if (auto attr_name = getArgAttrOfType<StringAttr>(
            operand.index(), kAttrArgumentNameAttr)) {
          all_attrs.insert(attr_name.getValue());
        }
      }
      return all_attrs;
    }
  }];

  let hasVerifier = 1;
  let hasCustomAssemblyFormat = 1;
}

    }

    if (!arg_type.isa<TensorType>()) {
      if (first_attr == -1) {
        first_attr = arg.index();
      }
      auto name =
          func.getArgAttrOfType<StringAttr>(arg.index(), kAttrArgumentNameAttr);
      if (!name) {
        func.emitError(
            llvm::Twine(arg.index()) +
            " attribute argument doesn't have a tfr.name attribute.");
        return failure();
      }