@property
    def is_on(self):
        return self._state
Return ``dy/dx`` assuming that ``eq == 0``.
dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/switch/rpi_rf.py/RPiRFSwitch.is_on--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/geometry/util.py/idiff