Executor API panics if there is err in getting function from backends (#407)
Executor API panics if there is err in getting function from backends (#407)


life1347/fission,platform9/fission,platform9/fission,life1347/fission,fission/fission,life1347/fission,fission/fission,platform9/fission,fission/fission,life1347/fission,life1347/fission,life1347/fission,life1347/fission,life1347/fission,life1347/fission,fission/fission,platform9/fission