follow docstring rules
follow docstring rules

tkerola/chainer,niboshi/chainer,wkentaro/chainer,hvy/chainer,okuta/chainer,niboshi/chainer,keisuke-umezawa/chainer,chainer/chainer,chainer/chainer,hvy/chainer,keisuke-umezawa/chainer,okuta/chainer,wkentaro/chainer,keisuke-umezawa/chainer,niboshi/chainer,wkentaro/chainer,okuta/chainer,niboshi/chainer,pfnet/chainer,hvy/chainer,okuta/chainer,keisuke-umezawa/chainer,chainer/chainer,chainer/chainer,hvy/chainer,wkentaro/chainer