import ch.psi.pshell.bs.Provider as Provider

p=Provider("provider", "tcp://localhost:9999", True)
st1 = Stream("st1", dispatcher)
st1.initialize()
st1.start()
st1.waitCacheChange(10000)

try: 
    bscan (st1, 100, 10, save=False)   
finally:
    st1.close()