add Close() method to API
add Close() method to API

NebulousLabs/Sia,ChrisSchinnerl/Sia,MrStrong/Sia,mtlynch/Sia,ericflo/Sia,mnsl/Sia,rivine/rivine,rivine/rivine,MrStrong/Sia,NebulousLabs/Sia,mharkus/Sia,mtlynch/Sia,ChrisSchinnerl/Sia,mharkus/Sia,mnsl/Sia,ericflo/Sia