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@sdesrozis could you please investigate why there is a warning here : https://travis-ci.org/github/pytorch/ignite/jobs/730492404#L2924
thanks !
Doc link is apparently badly rendered : https://pytorch.org/ignite/master/contrib/metrics.html#ignite.contrib.metrics.regression.CanberraMetric
Originally posted by @vfdev-5 in #1314 (comment)

Namespace are shared so reference should be unique