public ListSchedulesRequest withGroupName(String groupName) {
        setGroupName(groupName);
        return this;
    }
<p>
If specified, only lists the schedules whose associated schedule group matches the given filter.
</p>

@param groupName
       If specified, only lists the schedules whose associated schedule group matches the given filter.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-scheduler/src/main/java/com/amazonaws/services/scheduler/model/ListSchedulesRequest.java