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https://git.opendaylight.org/gerrit/c/transportpce/+/101544/comment/d93e9158_9752d8a2/
Rule n°5 :
If child attributes are distributed in few lines they need the same indentation level.
https://git.opendaylight.org/gerrit/c/transportpce/+/101544/comment/d93e9158_9752d8a2/