template <typename ContainerT,
          typename = typename std::enable_if<std::is_same<
              std::optional<llvm::ArrayRef<int64_t>>,
              decltype(*std::declval<ContainerT>().begin())>::value>::type>
void SetShapeAttribute(absl::string_view name, ContainerT shapes,
                       AttrValueMap* values) {
  AttrValue value;
  auto& shape_list = *value.mutable_list();
  for (const std::optional<llvm::ArrayRef<int64_t>>& shape : shapes) {

    }
  } else {
    proto->set_unknown_rank(true);
  }
}

// Sets shape attribute with the given name. If the attribute already exists
// with a different value, returns an error.
Status SetShapeAttribute(absl::string_view name, mlir::ShapedType shape,
                         AttrValueMap* values);

// Returns true if the given instruction is an mlir::TF::LegacyCallOp or the
// result of such an operation transformed by the

          std::move(value);
    }
  }
  for (auto& it : func_call_attrs) {
    (*values)[it.first] = std::move(it.second);
  }
  return absl::OkStatus();
}

Status SetShapeAttribute(absl::string_view name, mlir::ShapedType shaped_type,
                         AttrValueMap* values) {
  AttrValue value;
  SetTensorShapeProto(shaped_type, value.mutable_list()->add_shape());

      }

      (*node_def->mutable_attr())["_handle_dtypes"] = handle_dtypes_attr;
      (*node_def->mutable_attr())["_handle_shapes"] = handle_shapes_attr;
    }
  }

  TF_RETURN_IF_ERROR(
      SetShapeAttribute("_output_shapes", arg_type, node_def->mutable_attr()));

  DataType dtype;
  TF_RETURN_IF_ERROR(ConvertToDataType(arg_type.getElementType(), &dtype));
  AttrValue type_attr;
  type_attr.set_type(dtype);

      }

      (*node_def->mutable_attr())["_handle_dtypes"] = handle_dtypes_attr;
      (*node_def->mutable_attr())["_handle_shapes"] = handle_shapes_attr;
    }
  }

  TF_RETURN_IF_ERROR(
      SetShapeAttribute("_output_shapes", arg_type, node_def->mutable_attr()));

  DataType dtype;
  TF_RETURN_IF_ERROR(ConvertToDataType(arg_type.getElementType(), &dtype));
  AttrValue type_attr;
  type_attr.set_type(dtype);