code: public String getPassword(){
          return mBodyMap.containsKey(BoxItem.FIELD_SHARED_LINK) ?
                  ((BoxSharedLink) mBodyMap.get(BoxItem.FIELD_SHARED_LINK)).getPassword() :
                  null;
      }
docs: Returns the shared link password currently set in the request.
  
  @return  the password for the item's shared link, or null if not set.