How to turn all the LEDs on my blinkstick Flex (using python)

As I explained in the title, I want to just turn all the LEDs in my blinkstick flex strip and turn them off all at the same time.
How can I do that using python, is there a function for it ?
PS: I just bought my blinkstick FLEX and I dont know anything about how to use the Blinkstick python library.
Can someone help this poor soul ?