public AssetBundleCloudFormationOverridePropertyConfiguration withThemes(AssetBundleExportJobThemeOverrideProperties... themes) {
        if (this.themes == null) {
            setThemes(new java.util.ArrayList<AssetBundleExportJobThemeOverrideProperties>(themes.length));
        }
        for (AssetBundleExportJobThemeOverrideProperties ele : themes) {
            this.themes.add(ele);
        }
        return this;
    }
<p>
An optional list of structures that control how <code>Theme</code> resources are parameterized in the returned
CloudFormation template.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setThemes(java.util.Collection)} or {@link #withThemes(java.util.Collection)} if you want to override the
existing values.
</p>

@param themes
       An optional list of structures that control how <code>Theme</code> resources are parameterized in the
       returned CloudFormation template.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/AssetBundleCloudFormationOverridePropertyConfiguration.java