change cupy to numpy in decorater
change cupy to numpy in decorater

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