anchor.diff:  
       + Attributes (Area Reservations)
   
  +# Group Events
  +
   ## Area Events [/v1/areas/{id}/events{?from,to}]
   
   Return abbreviated event info for an area.
  
positive.code:     + Attributes
          - areas (house_tree)
  
  ## Area Reservations [/v1/areas/{id}/tree/reservations{?from,to}]
  
  Return all reservatons for an area and its descendants.
  
negative.code: + Response 200 (application/json)
  
      + Attributes(Area Events)
  
  ## Event with Parts [/v1/events/{id}/tree]
  
  