Add model argument to serialize
Add model argument to serialize

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