It would be useful to add the possibility to swipe items in a list in order to trigger an action (like deleting the item).
This is described in the Material Design Spec here (albeit succinctly) : List: Controls | Leave-behinds
Multiple implementation of this pattern exist in Google apps (GMail vs Inbox), we should chose with one  to add in the lib (or both).
There's also a need to define how we should expose this functionality to the users of this library.
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