## clear() {#default} Clears all items from this collection. ```python def clear(self): ... ``` ### Examples Shows how to work with drop down-list structured document tags. ```python doc = aw.Docum...... ```python doc = aw.Document() tag = aw.markup.StructuredDocumentTa(doc...StructuredDocumentTa(doc, aw.markup.SdtType.DROP_DOWN_LIST, aw.markup.MarkupLevel...