def METHOD_NAME(self) -> None:
    sum_so_far = 0
    with AccumulationTable(["sum_so_far"]) as table:
        for item in self.items:
            sum_so_far = sum_so_far + item
    assert table.loop_variables == {"item": ["N/A", 10, 20, 30]}
    assert table.loop_accumulators == {"sum_so_far": [0, 10, 30, 60]}