* add oneOf support to c# netcore
* add oneof support to c# netcore client
* update samples
* remove unused file
* add oneof support to response in api client
* add oneof support to serialize
* update samples
* fix actual instance, add more tests
* fix oneof handling in api client
* update tests
* update ZenTest
ZenTest 4.11.1 requires rubygems 2.x.
But Ruby 2.6.0 include rubygems 3.x.
So we can't use ruby client in Ruby 2.6.0.
https://www.ruby-lang.org/en/news/2018/12/25/ruby-2-6-0-released/
ZenTest 4.11.2 removed rubygems dependency so we should update.
1883b210aa
* update ruby client sample
* Added tests and fix for issue #1392. Param validation with regex not recognizing \d correctly in Ruby client.
* Added generated files to pass ./bin/utils/ensure-up-to-date which is run by circleci