public DescribeEventDetailsResult withSuccessfulSet(EventDetails... successfulSet) {
        if (this.successfulSet == null) {
            setSuccessfulSet(new java.util.ArrayList<EventDetails>(successfulSet.length));
        }
        for (EventDetails ele : successfulSet) {
            this.successfulSet.add(ele);
        }
        return this;
    }
<p>
Information about the events that could be retrieved.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setSuccessfulSet(java.util.Collection)} or {@link #withSuccessfulSet(java.util.Collection)} if you want
to override the existing values.
</p>

@param successfulSet
       Information about the events that could be retrieved.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-health/src/main/java/com/amazonaws/services/health/model/DescribeEventDetailsResult.java