text: import numpy as np
  
  class BayesNet(object):
      '''
      Define a Bayesian Network class
      '''
  
      def __init__(self):
          self.nodes = None
  
  class Node(object):
      
      def __init__(self, table, state):
          self.table = table
          self.state = state
  
  
  if __name__ == "__main__":
      pass
  
  