code: def test_concat_empty_batch_list_raise_exception(self):
      self.assertEqual(Batch(), Batch.concat([]))
  
imports: import unittest
  from test.util import create_dataframe, create_dataframe_same
  import numpy
  import pandas
  from evadb.models.storage.batch import Batch
  from evadb.parser.alias import Alias
label_desc: Use image node_id 13 for calling the BatchTest obj's underlying member method code with example usage: obj.test_concat_empty_batch_list_raise_exception() without return types