def _getdecoder(self,
outvocsize=None,
outembdim=None,
outemb=None,
maskid=-1,
attention=None,
lastencinnerdim=None,
decinnerdim=None,
inconcat=False,
outconcat=True,
softmaxout=None,
dropout=None,
rnu=None):
lastencinnerdim = self.lastencinnerdim if lastencinnerdim is None else lastencinnerdim
decinnerdim = self.decinnerdim if decinnerdim is None else decinnerdim
rnu = GRU if rnu is None else rnu
dec = SeqDecoder.RNN(
emb=outemb,
embdim=outembdim,
embsize=outvocsize,
maskid=maskid,
ctxdim=lastencinnerdim,
attention=attention,
innerdim=decinnerdim,
inconcat=inconcat,
softmaxoutblock=softmaxout,
outconcat=outconcat,
dropout=dropout,
rnu=rnu,
dropout_h=dropout,
)
return dec
