'Construct a Ttk Treeview with parent master.
STANDARD OPTIONS
class, cursor, style, takefocus, xscrollcommand,
yscrollcommand
WIDGET-SPECIFIC OPTIONS
columns, displaycolumns, height, padding, selectmode, show
ITEM OPTIONS
text, image, values, open, tags
TAG OPTIONS
foreground, background, font, image'

def __init__(self, master=None, **kw):

    Widget.__init__(self, master, 'ttk::treeview', kw)
