ROS2 Humble

I am working with custom message interface (Data.msg): byte[<=1024] data_packet

Now I want to get the data from the topic in a callback:

void callback(custom_interfaces::msg::Data::SharedPtr msg)
{   
    auto x = msg->data_packet.data();
}

But I get this error message:

no instance of overloaded function "rosidlruntimecpp::BoundedVector::data [with Tp=unsigned char, UpperBound=1024UL, Alloc=std::allocator]" matches the argument listC/C++(304)

and compilation error:

error: no matching function for call to ‘rosidl_runtime_cpp::BoundedVector<unsigned char, 1024, std::allocator<unsigned char> >::data()’
   21 |     auto x = msg->data_packet.data();

I can get to the contents though like this:

std::vector<unsigned char> data(msg->data_packet.begin(), msg->data_packet.end());

So this is not a very big problem, but it would be very convenient to having to create new variable each time I need to read this data.