Getting selling plan group details through SellingPlanGroup ID

[bilalnasir]

Hey! 
I have been searching for a day now but couldn't find any query to get selling plan group details through id. [e.g "gid://shopify/SellingPlanGroup/111111111"]

I want the user to update the subscription group details such as selling plans and group name etc. but first of all I want to fetch the previous details for the group ID and display them to the user to edit them.

Can anyone help me in this regard?