“f3953aa5e30c61a9e4351a2f278d7b26be7156dd”上不存在“core/git@gitcode.net:paddlepaddle/Serving.git”
* Add DataFeeder A v2 API like data feeder for book demos. We can feed data directly from reader. * Fix CI * Add an unittest for while/rnn op forward * Add unittest for raw while op backward * Fix CI