'Return the state attributes.'

@property
def device_state_attributes(self):

    attrs = {'device_name': self.data.device_name, 'description': self.description, 'unit_of_measurement': self.data.unit_of_measurement, 'product_id': self.data.product_id, 'price1': self.data.prices[0], 'price2': self.data.prices[1], 'price3': self.data.prices[2], 'price4': self.data.prices[3]}
    return attrs
