Bug 184762 BIRT Model - Enhancments to the level defintion
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
import org.eclipse.birt.report.model.elements.interfaces.IDesignElementModel;
import org.eclipse.birt.report.model.elements.interfaces.IDimensionModel;
import org.eclipse.birt.report.model.elements.interfaces.IExtendedItemModel;
import org.eclipse.birt.report.model.elements.interfaces.IFreeFormModel;
import org.eclipse.birt.report.model.elements.interfaces.IGraphicMaterPageModel;
import org.eclipse.birt.report.model.elements.interfaces.IGridItemModel;
import org.eclipse.birt.report.model.elements.interfaces.IGroupElementModel;
import org.eclipse.birt.report.model.elements.interfaces.IHierarchyModel;
import org.eclipse.birt.report.model.elements.interfaces.IImageItemModel;
import org.eclipse.birt.report.model.elements.interfaces.IJointDataSetModel;
import org.eclipse.birt.report.model.elements.interfaces.ILabelModel;
import org.eclipse.birt.report.model.elements.interfaces.ILevelModel;
import org.eclipse.birt.report.model.elements.interfaces.ILineItemModel;
import org.eclipse.birt.report.model.elements.interfaces.IListingElementModel;
import org.eclipse.birt.report.model.elements.interfaces.IMasterPageModel;
import org.eclipse.birt.report.model.elements.interfaces.IMeasureGroupModel;
import org.eclipse.birt.report.model.elements.interfaces.IMeasureModel;
import org.eclipse.birt.report.model.elements.interfaces.IOdaDataSetModel;
import org.eclipse.birt.report.model.elements.interfaces.IOdaDataSourceModel;
import org.eclipse.birt.report.model.elements.interfaces.IOdaExtendableElementModel;
import org.eclipse.birt.report.model.elements.interfaces.IOdaOlapElementModel;
import org.eclipse.birt.report.model.elements.interfaces.IParameterGroupModel;
import org.eclipse.birt.report.model.elements.interfaces.IParameterModel;
import org.eclipse.birt.report.model.elements.interfaces.IReportItemModel;
import org.eclipse.birt.report.model.elements.interfaces.IScalarParameterModel;
import org.eclipse.birt.report.model.elements.interfaces.IScriptDataSetModel;
import org.eclipse.birt.report.model.elements.interfaces.IScriptDataSourceModel;
import org.eclipse.birt.report.model.elements.interfaces.ISimpleDataSetModel;
import org.eclipse.birt.report.model.elements.interfaces.ISimpleMasterPageModel;
import org.eclipse.birt.report.model.elements.interfaces.IStyleModel;