def filter_function_legislative_bodies(self, fn_node):
        return self.filter_nodes('LegislativeBody', parent=fn_node)
test that fetching all of the data returns the correct results
dataset/ETHPy150Open PublicMapping/DistrictBuilder/django/publicmapping/redistricting/__init__.py/StoredConfig.filter_function_legislative_bodies--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/cx_Oracle-5.1.2/test/TimestampVar.py/TestTimestampVar.testFetchAll