def state(self):
        return self.x_k
Interpolate the opacity to extinction to a given wavelength
dataset/ETHPy150Open bolme/pyvision/src/pyvision/surveillance/kalman.py/KalmanFilter.state--crossover with--dataset/ETHPy150Open hyperion-rt/hyperion/hyperion/dust/optical_properties.py/OpticalProperties.interp_chi_wav