google/google-api-ruby-client — pull request #12 by sanemat (2012-10-09 22:23:13+00:00)
Title: Compatible multi_json >= 1.0.0

This is same problem:
https://github.com/collectiveidea/json_spec/issues/27

MultiJson always ```MultiJson.respond_to?(:load)``` return true, I understand, so using ```MultiJson.respond_to?(:adaptor)```

Below is behavior:
https://gist.github.com/3861716#file_before_e28035d7adcbd83eca4f5b566785ccf7bd2915db.txt
https://gist.github.com/3861716#file_after_0b3a7753f9ddc414dc606f04e83c33fdae221365.txt

I have no test, but it works fine.

Fix the problem actually.
https://github.com/google/google-api-ruby-client/pull/9
https://github.com/google/google-api-ruby-client/issues/10