code: public void addBroadcastSetForUpdateFunction(String name, DataSet<?> data) {
  		this.bcVarsUpdate.add(new Tuple2<String, DataSet<?>>(name, data));
  	}
docs: Adds a data set as a broadcast set to the vertex update function.
  
  @param name The name under which the broadcast data is available in the vertex update function.
  @param data The data set to be broadcasted.