code: def get_delete_field(key):
      def _delete_field(datum):
          if key in datum:
              del datum[key]
          return datum
  
      return _delete_field
  
imports: from typing import Optional, Tuple
  import numpy
  from scenic.dataset_lib.big_transfer.preprocessing import autoaugment
  from scenic.dataset_lib.big_transfer.preprocessing import utils
  from scenic.dataset_lib.big_transfer.registry import Registry
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_addons import image
label_desc: Use image node_id 25 for calling a global function with example usage: get_delete_field(key) and returns: _delete_field, datum