Using displacementMap with sphere component? Babylon Reactjs

I am making sphere by using from react babylon.js in my React app. I have to attach displacementMap in that sphere. I tried .applyDisplacementMap but it only works with mesh. I am not sure how to do that. I need help.

Hey sphere is a mesh as well. See example here:

Oh I see, And I found a function scene.getMeshByName to get that mesh working. Thank you for you quick response.