def ebatomiccmd(self, cmd):
        r = [EBTABLES_BIN, "--atomic-file", self.atomic_file]
        if cmd:
            r.extend(cmd)
        return r
a.index(b) --> int or tuple
dataset/ETHPy150Open coreemu/core/daemon/core/netns/vnet.py/EbtablesQueue.ebatomiccmd--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/pymel/util/arrays.py/Array.index