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Type: Improvement
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Resolution: Fixed
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Priority: Minor - P4
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Affects Version/s: 2.4.1
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Component/s: None
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None
In Ruby 2.4, there's a warning when forwarding to a private method. So I get this from the mongo gem:
```
/Users/bcrouse/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/mongo-2.4.1/lib/mongo/collection/view/builder/aggregation.rb:78:in `specification': Mongo::Collection::View::Builder::Aggregation#write_concern at /Users/bcrouse/.rbenv/versions/2.4.1/lib/ruby/2.4.0/forwardable.rb:157 forwarding to private method Mongo::Collection::View#write_concern
```