code: def test_global_aggregations_are_not_supported(self):
      df = get_pandas_df()
      builder = dataframes.QueryBuilder(df, "privacy_key")
      with self.assertRaisesRegex(
          NotImplementedError, "Global aggregations are not implemented"
      ):
          builder.count()
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from collections import namedtuple
  import pandas
  from pyspark import sql
  from unittest import mock
  from unittest.mock import patch
  from pipeline_dp import dataframes
  import pipeline_dp
label_desc: Use image node_id 2 for calling the QueryBuilderTest obj's underlying member method code with example usage: obj.test_global_aggregations_are_not_supported() without return types