code: def AddCount(self, history, predicted_word, count):
      self.counts[len(history)][history].AddCount(predicted_word, count)
  
imports: import argparse
  import math
  import sys
  from collections import defaultdict
label_desc: Use image node_id 2 for calling the NgramCounts obj's underlying member method code with example usage: obj.AddCount(history, predicted_word, count) without return types