def _SetStronglyConnected(self, *nodes):
    for node in nodes:
      _RecAnnotate(node, pytree_utils.Annotation.SPLIT_PENALTY,
                   STRONGLY_CONNECTED)
Check if a string is a valid hypervisor type
dataset/ETHPy150Open google/yapf/yapf/yapflib/split_penalty.py/_TreePenaltyAssigner._SetStronglyConnected--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/compute/hv_type.py/is_valid