code: def do_nothing_policy(board, base):
      base.next_action = None
  
imports: import pickle
  import base64
  import random
  import numpy
  import torch
  import torch.nn
  import torch.nn.functional
  from torch.distributions import Categorical
  from zerosum_env.envs.halite.helpers import *
  from zerosum_env import make, evaluate
  from collections import deque
  import os
label_desc: Use image node_id 23 for calling a global function with example usage: do_nothing_policy(board, base) without return types