how to use or solve dot (.) in the accessor value' string?

[bellship24]

Hi, I'm new in ReactJS and so appreciated about react table!
So, I was touring this library.
It is that I test to create some react app related to kubernetes client api.
In details, when I use kubectl, I want to render some data about kubectl get profile as table in react app.
For instance, below !

But I couldn't render request storage in the table's last column.
That is why the fetched k8s client response object has weird data format.
the format is the requests.storage like below.

and I defined accessor like below.

So, I wonder that I can put dot(.) on the accessor or there are some other solution?
If you know that, please share me :-)
Have a good day !