def METHOD_NAME(self, RealImag = None) -> tuple((np.ndarray, np.ndarray)):
    if not RealImag:
        signal = (self._i_q_data[:, 0] + 1.0j * self._i_q_data[:, 1])
        return np.abs(signal), np.angle(signal)
    else:
        return self._i_q_data[:, 0], self._i_q_data[:, 1]