See this
Styles_doc = AD.Styles # Estilos do documento
Styles_Ids = [] # Id dos estilos
PipeStyle_Ids = Styles_doc.PipeStyles # Id dos Pipe Styles
StructureStyle_Ids = Styles_doc.StructureStyles #Id dos Structures Styles
Styles_Ids.append(PipeStyle_Ids)
Styles_Ids.append(StructureStyle_Ids)