Hi! I have some questions about cache. I've started like this:

const data = await getFeaturesWithAxios(featuresEndpoint)
growthBook = new GrowthBook({ enableDevMode })
growthBook.setFeatures(data.features) // All is ok. I can see my features.

1. How does

fetchFeaturesWithCache

works (source)? I don't understand line 122. Is this some inner logic of GrowthBook or I am able to trigger it by some events?