Commit 035a8476 authored by Dan Moldovan's avatar Dan Moldovan Committed by TensorFlower Gardener
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Use weakrefs where absolutely safe to do so, in order to reduce the number of... 

Use weakrefs where absolutely safe to do so, in order to reduce the number of circular references. Replace unnecessary OrderedDict with a regular dict.

PiperOrigin-RevId: 213982097
parent 200b8976
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