Revision ab3e6da8 lib/hypervisor/hv_base.py

b/lib/hypervisor/hv_base.py
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  """
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  fn = lambda x: x in my_set
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  err = ("The value must be one of: %s" % " ,".join(my_set))
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  err = ("The value must be one of: %s" % utils.CommaJoin(my_set))
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  return (required, fn, err, None, None)
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