Support callable object
Support callable object

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