code: def test_filter_string_complement(dataframe):
      df = dataframe.filter_string(
          column_name="cities",
          search_string="hang",
          complement=True,
      )
  
      assert len(df) == 6
  
imports: import pytest
label_desc: Use image node_id 2 for calling a global function with example usage: test_filter_string_complement(dataframe) without return types