    def __return_state_dict(self):
        """
        Initialize the state dictionary used during the nowcast iteration.
        """
        return {
            "fft_objs": self.__state.fft_objs,
            "mask_prec": self.__state.mask_precip,
            "precip_cascades": self.__state.precip_cascades,
            "precip_decomp": self.__state.precip_decomposed,
            "precip_m": self.__state.precip_mask,
            "precip_m_d": self.__state.precip_mask_decomposed,
            "randgen_prec": self.__state.random_generator_precip,
        }
Initialize the state dictionary used during the nowcast iteration.
pysteps/nowcasts/steps.py