public void setAssignmentDurationInSeconds(Long assignmentDurationInSeconds) {
        this.assignmentDurationInSeconds = assignmentDurationInSeconds;
    }
<p>
The length of time, in seconds, that a Worker has to complete the HIT after accepting it.
</p>

@param assignmentDurationInSeconds
       The length of time, in seconds, that a Worker has to complete the HIT after accepting it.
aws-java-sdk-mechanicalturkrequester/src/main/java/com/amazonaws/services/mturk/model/HIT.java