code: def _batch(self, dims, batch_size):
      if dims[0] is None:
          dims[0] = batch_size
      return dims
  
imports: import tempfile
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_model_optimization.python.core.quantization.keras import quantize
  from tensorflow_model_optimization.python.core.quantization.keras import utils
label_desc: Use image node_id 1 for calling the QuantizeNumericalTest obj's underlying member method code with example usage: obj._batch(dims, batch_size) and returns: dims