This object is used for performing export\import of a unit.<p> The export process generates a list of files which are necessary for the import process. This list include files of units which have dependency in the exported unit, and model descriptor files such as index.xml and config.xml The import process receives the list which was generated in the export process, and uses it to understand which units should be exported, and how. </p>(c) SAP AG 2003-2006. All rights reserved. Gets a unit to export, and returns a list of files which are necessary for the import process. This list include files of units which have dependency in the exported unit, and model descriptor files such as index.xml and config.xml.The urn of model which contains the unit to export.The id of the unit to export.List of files to export. Gets a unit to import and a list of files which are necessary for the import process. This list should be a list which was generated in the export process The import is to the currently opened model, if such exists.List of files to import.The id of the unit to import.A usage to the imported unit, or <code>null</code> in case of any error. Checks whether the given kit configuration is equal to the current model's kits configuration This function is called at the begining of the import process, to check whether the import is valid."_config.xml" file of the model from which we perform the export.