Different parameters for different roles#130

I'm wondering what would be the best way to allow a certain endpoint to have its accepted parameters/response differ depending on the role of the user that is requesting it. Currently, in the project, a good example is the admin that does not require a recapthca code as opposed to other users. At the moment this is handled in the custom validation decorator. I'm wondering if it would be better to make have multiple parameter schemas defined for the different user roles. In that way, one could also auto-document this. Would this be possible to implement or would a different approach be preferred?