code: def test_aggregation_incorrect_etype(self):
      incorrect_etype = 100
      columnName = TupleValueExpression(name=0)
      aggr_expr = AggregationExpression(
          incorrect_etype, columnName, columnName
      )
      with pytest.raises(NotImplementedError):
          str(aggr_expr)
  
file_path: evadb/test/unit_tests/expression/test_aggregation.py
imports: import unittest
  import numpy
  import pandas
  import pytest
  from evadb.expression.abstract_expression import ExpressionType
  from evadb.expression.aggregation_expression import AggregationExpression
  from evadb.expression.tuple_value_expression import TupleValueExpression
  from evadb.models.storage.batch import Batch
label_desc: Use image node_id 10 for calling the AggregationExpressionsTest obj's underlying member method code with example usage: obj.test_aggregation_incorrect_etype() without return types