@decorate_constructor_parameter_types([])
    def __init__(self, **kwargs):
        super(DropDown, self).__init__(**kwargs)
        self.type = 'select'
        self.attributes[self.EVENT_ONCHANGE] = \
            "var params={};params['value']=document.getElementById('%(id)s').value;" \
            "sendCallbackParam('%(id)s','%(evt)s',params);" % {'id': id(self),
                                                               'evt': self.EVENT_ONCHANGE}
        self.selected_item = None
        self.selected_key = None
Args:
dataset/ETHPy150Open dddomodossola/remi/remi/gui.py/DropDown.__init__