public DescribeHostReservationsResult withHostReservationSet(HostReservation... hostReservationSet) {
        if (this.hostReservationSet == null) {
            setHostReservationSet(new com.amazonaws.internal.SdkInternalList<HostReservation>(hostReservationSet.length));
        }
        for (HostReservation ele : hostReservationSet) {
            this.hostReservationSet.add(ele);
        }
        return this;
    }
<p>
Details about the reservation's configuration.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setHostReservationSet(java.util.Collection)} or {@link #withHostReservationSet(java.util.Collection)} if
you want to override the existing values.
</p>

@param hostReservationSet
       Details about the reservation's configuration.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/DescribeHostReservationsResult.java