I'm trying to run get_fundamentals() on every first trading day of the quarter.
I have tried 2 ways of doing it.
1. 'schedule_function' and run 'get_fundamentals()'. However get_fundamentals() only allowed before_trading_starts(). So this method cannot work
2. Try to get 1st trading day of the quarter and run 'get_fundamentals()' in before_trading_starts(). However, I have difficulties getting the 1st trading day of the quarter