Modifying context in resolver

I am currently trying to set additional in context from parent resolver to children. I found this solution: https://github.com/graphql-go/graphql/issues/345 where it was suggested to use RootObject. The problem is that I am also trying to use dataloaders. And currently `GetBatchFn` only accepts context and keys and not `graphql.ResolveParams`. I feel like two ways around could be:
1. To embed value that I need into keys
2. Have reference to RootObject inside context
But this solutions feel very clunky. Am I missing something? Is there more elegant way of doing it?