def __init__(self, varname, image=None, iconsize=None,
                 shadow=None, shadowsize=None, iconanchor=None,
                 infowindowanchor=None):
        self.varname = varname
        self.image = image
        self.iconsize = iconsize
        self.shadow = shadow
        self.shadowsize = shadowsize
        self.iconanchor = iconanchor
        self.infowindowanchor = infowindowanchor