def _parse(self, stream, context):

        raise NotImplementedError()
should be able to perform a drag an element and drop in another element
dataset/ETHPy150Open MostAwesomeDude/construct/construct/core.py/Construct._parse--crossover with--dataset/ETHPy150Open cobrateam/splinter/tests/mouse_interaction.py/MouseInteractionTest.test_drag_and_drop