Fix typecheck
Fix typecheck

ktnyt/chainer,rezoo/chainer,jnishi/chainer,ktnyt/chainer,ronekko/chainer,wkentaro/chainer,ktnyt/chainer,chainer/chainer,chainer/chainer,chainer/chainer,wkentaro/chainer,keisuke-umezawa/chainer,niboshi/chainer,hvy/chainer,tkerola/chainer,keisuke-umezawa/chainer,anaruse/chainer,delta2323/chainer,niboshi/chainer,aonotas/chainer,hvy/chainer,kikusu/chainer,cupy/cupy,jnishi/chainer,okuta/chainer,okuta/chainer,niboshi/chainer,keisuke-umezawa/chainer,okuta/chainer,chainer/chainer,wkentaro/chainer,okuta/chainer,niboshi/chainer,wkentaro/chainer,benob/chainer,hvy/chainer,cupy/cupy,benob/chainer,cupy/cupy,cupy/cupy,jnishi/chainer,kashif/chainer,keisuke-umezawa/chainer,jnishi/chainer,ktnyt/chainer,hvy/chainer,ysekky/chainer,kikusu/chainer,pfnet/chainer,kiyukuta/chainer