code: def test_drop_column_alias_should_work_on_frame_without_alias(self):
      batch = Batch(create_dataframe(5))
  
      # Frame with no alias
      batch.drop_column_alias()
  
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 22 for calling the BatchTest obj's underlying member method code with example usage: obj.test_drop_column_alias_should_work_on_frame_without_alias() without return types