public void setIdleSessionTTLInSeconds(Integer idleSessionTTLInSeconds) {
        this.idleSessionTTLInSeconds = idleSessionTTLInSeconds;
    }
<p>
The time, in seconds, that Amazon Lex should keep information about a user's conversation with the bot.
</p>
<p>
A user interaction remains active for the amount of time specified. If no conversation occurs during this time,
the session expires and Amazon Lex deletes any data provided before the timeout.
</p>
<p>
You can specify between 60 (1 minute) and 86,400 (24 hours) seconds.
</p>

@param idleSessionTTLInSeconds
       The time, in seconds, that Amazon Lex should keep information about a user's conversation with the
       bot.</p>
       <p>
       A user interaction remains active for the amount of time specified. If no conversation occurs during this
       time, the session expires and Amazon Lex deletes any data provided before the timeout.
       </p>
       <p>
       You can specify between 60 (1 minute) and 86,400 (24 hours) seconds.
aws-java-sdk-lexmodelsv2/src/main/java/com/amazonaws/services/lexmodelsv2/model/UpdateBotRequest.java