**m**: int, optional (default=1)

The period for seasonal differencing, m refers to the number of periods in each season. For example, m is 4 for quarterly data, 12 for monthly data, or 1 for annual (non-seasonal) data. Default is 1. Note that if m == 1 (i.e., is non-seasonal), seasonal will be set to False. For more information on setting this parameter, see Setting m.

**seasonal**: bool, optional (default=True)

Whether to fit a seasonal ARIMA. Default is True. Note that if seasonal is True and m== 1, seasonal will be set to False.

It says the m default is set to 1 which means no seasonality. But the seasonal default is set to true which means seasonality [and that makes sense given what this does which is to search for SARIMA not just ARIMA].

I don't see how both of these defaults are possible at the same time.