code: def check_waitk(self, p_choose, lagging, padding_mask):
      bsz, tgt_len, src_len = p_choose.size()
      for bsz_i in range(bsz):
          for i in range(tgt_len):
              for j in range(src_len):
                  if not padding_mask[bsz_i, j]:
                      if j - i == lagging - 1:
                          self.assertTrue(p_choose[bsz_i, i, j] == 1)
                      else:
                          self.assertTrue(p_choose[bsz_i, i, j] == 0)
  
imports: import argparse
  import unittest
  from typing import Any, Dict
  import torch
  from examples.simultaneous_translation.models import transformer_monotonic_attention
  from tests.test_roberta import FakeTask
label_desc: Use image node_id 2 for calling the WaitkTestCase obj's underlying member method code with example usage: obj.check_waitk(p_choose, lagging, padding_mask) without return types