public PubsubFuture<Void> modifyAckDeadline(final String project, final String subscription,
                                              final int ackDeadlineSeconds, final String... ackIds) {
    return modifyAckDeadline(project, subscription, ackDeadlineSeconds, asList(ackIds));
  }
public PubsubFuture < Void > modifyAckDeadline ( final String project , final String subscription , final int ackDeadlineSeconds , final String ... ackIds ) { return modifyAckDeadline ( project , subscription , ackDeadlineSeconds , asList ( ackIds ) ) ; }
Modify the ack deadline for a list of received messages.

@param project            The Google Cloud project.
@param subscription       The subscription of the received message to modify the ack deadline on.
@param ackDeadlineSeconds The new ack deadline.
@param ackIds             List of message ID's to modify the ack deadline on.
@return A future that is completed when this request is completed.