code: public BoxSharedLink.Access getAccess() {
          return mBodyMap.containsKey(BoxItem.FIELD_SHARED_LINK) ?
                  ((BoxSharedLink) mBodyMap.get(BoxItem.FIELD_SHARED_LINK)).getAccess() :
                  null;
      }
docs: Gets the shared link access currently set for the item in the request.
  
  @return  shared link access for the item, or null if not set.