3.21  drscheme:rep:context<%>

Objects that match this interface provide all of the services that the drscheme:rep:text% class needs to connect with it's context.

Methods
    clear-annotations
    disable-evaluation
    enable-evaluation
    ensure-rep-shown
    get-breakables
    get-directory
    needs-execution
    reset-offer-kill
    set-breakables
    update-running