code: public static SyncMapItemCreator creator(final String pathServiceSid, 
                                               final String pathMapSid, 
                                               final String key, 
                                               final Map<String, Object> data) {
          return new SyncMapItemCreator(pathServiceSid, pathMapSid, key, data);
      }
docs: Create a SyncMapItemCreator to execute create.
  
  @param pathServiceSid The service_sid
  @param pathMapSid The map_sid
  @param key The unique user-defined key of this Map Item.
  @param data Contains arbitrary user-defined, schema-less data that this Map
  Item stores, represented by a JSON object, up to 16KB.
  @return SyncMapItemCreator capable of executing the create