How do you add properties to the key of a map-of schema? I’d like to specify that it’s a map of a path to a map-of an http-method to a value. Not sure where to put the props

[:map-of {:title "path"} ;;; <- where does this go
  string? 
  [:map-of [:enum {:title "method"} :get :post :patch :put :delete]] :map]