code: def initHidden(self):
      return torch.zeros(self.nbatch, self.nhidden)
  
imports: import os
  import argparse
  import logging
  import time
  import numpy
  import numpy.random
  import matplotlib
  import matplotlib.pyplot
  import torch
  import torch.nn
  import torch.optim
  import torch.nn.functional
label_desc: Use image node_id 3 for calling the RecognitionRNN obj's underlying member method code with example usage: obj.initHidden() and returns: torch