Help.Register
val top : ?listable:bool -> string -> ?short:Imandra_document.Document.t -> Imandra_document.Document.t -> unit
Register help for a new topic
if true, the entry will show up in #help;;, otherwise it's only available through #help <topic>;;
#help;;
#help <topic>;;
if provided, give a short document used in #help;;
val reset : unit -> unit
Remove all help topics.