<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_data_item_by_uuid(self, data_item_uuid: uuid_module.UUID) -> DataItem: """Get the data item with the given UUID. .. versionadded:: 1.0 Status: Provisional Scriptable: Yes """

        data_item = self._document_model.get_data_item_by_uuid(data_item_uuid)
        return DataItem(data_item) if data_item else None