code: def test_aggregeate_bad_column(self):
      tableset = TableSet(self.tables.values(), self.tables.keys())
  
      with self.assertRaises(KeyError):
          tableset.aggregate([("one_sum", Sum("one"))])
  
      with self.assertRaises(KeyError):
          tableset.aggregate([("bad_sum", Sum("bad"))])
  
imports: from collections import OrderedDict
  from decimal import Decimal
  from agate import Table, TableSet
  from agate.aggregations import Count, MaxLength, Mean, Min, Sum
  from agate.data_types import Number, Text
  from agate.exceptions import DataTypeError
  from agate.testcase import AgateTestCase
label_desc: Use image node_id 10 for calling the TestAggregate obj's underlying member method code with example usage: obj.test_aggregeate_bad_column() without return types