def METHOD_NAME(self):
    """Check the variance of the rate of the rate_neuron for input noise"""
    # simulate
    nest.Simulate(self.simtime)
    # get variance of the rate
    events = nest.GetStatus(self.multimeter)[0]["events"]
    senders = events["senders"]
    senders_ipn = np.where(senders == self.rate_neuron_ipn.get("global_id"))[0]
    rate = events["rate"][senders_ipn]
    var_rate = np.var(rate)
    # expected variance
    var_test = self.neuron_params["sigma"] ** 2 / 2.0
    # assert
    self.assertTrue(np.isclose(var_rate, var_test, rtol=self.rtol))