code: def bert_data_tuple(data):
      """
      checks if data tuple is BERT-style format
      """
      if is_iter(data):
          return False
      if (
          type(data[0]) == list
          and len(data[0]) == 2
          and type(data[0][0]) is np.ndarray
          and type(data[0][1]) is np.ndarray
          and type(data[1]) is np.ndarray
          and np.count_nonzero(data[0][1]) == 0
      ):
          return True
      else:
          return False
  
imports: from .imports import *
  from subprocess import Popen
label_desc: Use image node_id 25 for calling a global function with example usage: bert_data_tuple(data) and returns: False, True, False