code: def __getVimpl(self, memo, j):
      if j not in memo:
          memo[j] = self.getV(self.__get_lam_sqrttp1(j))
      return memo[j]
  
label_desc: Use image node_id 6 for calling the CountableDiscreteBase obj's underlying member method code with example usage: obj.__getVimpl(memo, j) and returns: memo