def _get_start_params(self):
    with warnings.catch_warnings():
        warnings.simplefilter('ignore', category=ConvergenceWarning)
        start_params = self.model_main.fit(disp=0, method='nm').params
    start_params = np.append(np.zeros(self.k_inflate), start_params)
    return start_params
def _get_start_params(self):
    with warnings.catch_warnings():
        warnings.simplefilter('ignore', category=ConvergenceWarning)
        start_params = self.model_main.fit(disp=0, method='nm').params
    start_params = np.append(np.zeros(self.k_inflate), start_params)
    return start_params