type item = [ | `oocanvasitem
]type item_model = [ | `oocanvasitemmodel
]type item_simple = [ | `oocanvasitemsimple
]type item_model_simple = [ | `oocanvasitemmodelsimple
]type style = [ | `oocanvasstyle
]type group = [ | item| `oocanvasgroup
]type ellipse = [ | item| `oocanvasellipse
]type grid = [ | item| `oocanvasgrid
]type image = [ | item| `oocanvasimage
]type path = [ | item| `oocanvaspath
]type polyline = [ | item| `oocanvaspolyline
]type rect = [ | item| `oocanvasrect
]type text = [ | item| `oocanvastext
]type table = [ | group| `oocanvastable
]type grou_pmodel = [ | `oocanvasgroupmodel
]type ellipse_model = [ | `oocanvasellipsemodel
]type grid_model = [ | `oocanvasgridmodel
]type image_model = [ | `oocanvasimagemodel
]type path_model = [ | `oocanvaspathmodel
]type polyline_model = [ | `oocanvaspolylinemodel
]type rect_model = [ | `oocanvasrectmodel
]type text_model = [ | `oocanvastextmodel
]type table_model = [ | `oocanvastablemodel
]