public void setAckModeRetryDurationSecs(Integer ackModeRetryDurationSecs) {
        this.ackModeRetryDurationSecs = ackModeRetryDurationSecs;
    }
<p>
The duration of time in seconds to retry sending the ACK.
</p>

@param ackModeRetryDurationSecs
       The duration of time in seconds to retry sending the ACK.
aws-java-sdk-iotwireless/src/main/java/com/amazonaws/services/iotwireless/model/SidewalkSendDataToDevice.java