no, this is a little different... it's not actually an options struct, it's the request itself.  Most API methods take an existing resource type as the request body, or else use query parameters for everything.  The only other example that we have of something like this is [`createTree`](https://github.com/google/go-github/blob/0ca38ec28570cc71b643d46e4d09e7bd84208f78/github/git_trees.go#L59).  Realistically, that should probably be named `createTreeRequest`, so follow that pattern.  We typically list the verb before the noun, so this would be `createRefRequest`.