def _get_name(self):
        ret = "VTK Data (uninitialized)"
        if self.data is not None:
            typ = self.data.__class__.__name__
            ret = "VTK Data (%s)"%typ
        if '[Hidden]' in self.name:
            ret += ' [Hidden]'
        return ret
REST API operation to activate projector elements. It expects a POST
dataset/ETHPy150Open enthought/mayavi/mayavi/sources/vtk_data_source.py/VTKDataSource._get_name--crossover with--dataset/ETHPy150Open OpenSlides/OpenSlides/openslides/core/views.py/ProjectorViewSet.prune_elements