def __init__(self, size, dropout=None, named_tensors=None, scope='<STR_LIT>', summary_labels=(), return_final_state=True):
self.size = size<EOL>self.dropout = dropout<EOL>self.return_final_state = return_final_state<EOL>super(Lstm, self).__init__(named_tensors=named_tensors, scope=scope, summary_labels=summary_labels)<EOL>
LSTM layer.

Args:
    size: LSTM size.
    dropout: Dropout rate.