Added conv ai 2 (Again)
CONTRIBUTOR
Looking perfect to me, need to rerun the tests

2020-12-10T19:57:13Z
https://github.com/huggingface/datasets/pull/1462#issuecomment-742760576
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2020-12-10T19:57:13Z
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Thanks, @tanmoyio. 
How do I rerun the tests? Should I change something or push a new commit?
2020-12-10T21:02:35Z
https://github.com/huggingface/datasets/pull/1462#issuecomment-742797190
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2020-12-10T21:02:35Z
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@rkc007 you don't need to rerun it, @lhoestq @yjernite will rerun it, as there are huge number of PRs in the queue it might take lil bit of time. 
2020-12-11T06:29:34Z
https://github.com/huggingface/datasets/pull/1462#issuecomment-743002025
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ive just re-run the tests
2020-12-11T06:49:41Z
https://github.com/huggingface/datasets/pull/1462#issuecomment-743010456
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Thank you @abhishekkrthakur. Can you please rerun it again? It seems something was broken in CI during the previous test.
2020-12-11T17:22:21Z
https://github.com/huggingface/datasets/pull/1462#issuecomment-743322000
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@lhoestq Sorry for the mess. I don't know why this keeps on happening. I tried step by step process of updating the PR but seems something is wrong. This happened for 2nd time with the same PR. Apologies for that. 

New PR -> https://github.com/huggingface/datasets/pull/1527
Also, I fixed everything in the new PR.
2020-12-13T00:21:31Z
https://github.com/huggingface/datasets/pull/1462#issuecomment-743925067
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The original PR -> https://github.com/huggingface/datasets/pull/1383

Reason for creating again - 

The reason I had to create the PR again was due to the master rebasing issue. After rebasing the changes, all the previous commits got added to the branch. 