code: def test_get(self):
      with self._exp() as exp:
          var = StringSet(exp, self._random_path())
          var.add(["abc", "xyz"])
          var.remove(["abc"])
          var.add(["hej", "lol"])
          self.assertEqual({"xyz", "hej", "lol"}, var.fetch())
  
file_path: neptune-client/tests/unit/neptune/new/attributes/sets/test_string_set.py
imports: from mock import MagicMock, call, patch
  from neptune.attributes.sets.string_set import StringSet, StringSetVal
  from neptune.internal.operation import AddStrings, ClearStringSet, RemoveStrings
  from tests.unit.neptune.new.attributes.test_attribute_base import TestAttributeBase
label_desc: Use image node_id 9 for calling the TestStringSet obj's underlying member method code with example usage: obj.test_get() without return types