Swipe Down to Go Back

I just found out about swipe-to-go-back with ion-views, and I’m wondering if there is any way to implement a swipe-down to go back gesture?

If this isn’t already implemented, could someone point me in the direction of the swipe-to-go-back implementation so I can see if its possible to tweak it to enable a swipe to go down gesture?

I’m using ionic-native-transitions and it works great with sliding left and right, along with swipe to go back, but there are a few parts where I have animations going up and down instead of left and right.