anchor.diff:  (defrpc call-notify 6
     (:list :string :int32)
     :void
  +  (:program nsm 1)
     (:arg-transformer (name state) (list name state))
     (:documentation "This RPC is used to inform servers that our local state has changed. NAME should be the local hostname, STATE should be the local state number.")
     (:handler #'%handle-notify))
  
positive.code:   nil)
  
  (defrpc call-null 0 :void :void
    (:documentation "Test connectivity to the NSM service.")
    (:handler #'%handle-null))
  
  
negative.code:   *state*)
  
  (defrpc call-unmonitor-all 4 my-id :int32
    (:program nsm 1)
    (:arg-transformer (&key (callback-hostname "localhost") (program 0) (version 0) (proc 0))
      (make-my-id :name callback-hostname
                  :program program
  