public DescribeDBParameterGroupsResult withDBParameterGroups(DBParameterGroup... dBParameterGroups) {
        if (this.dBParameterGroups == null) {
            setDBParameterGroups(new com.amazonaws.internal.SdkInternalList<DBParameterGroup>(dBParameterGroups.length));
        }
        for (DBParameterGroup ele : dBParameterGroups) {
            this.dBParameterGroups.add(ele);
        }
        return this;
    }
<p>
A list of <code>DBParameterGroup</code> instances.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setDBParameterGroups(java.util.Collection)} or {@link #withDBParameterGroups(java.util.Collection)} if
you want to override the existing values.
</p>

@param dBParameterGroups
       A list of <code>DBParameterGroup</code> instances.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/DescribeDBParameterGroupsResult.java