pyvista.MultiBlock.clean# MultiBlock.clean(empty: bool = True) → None[source]# Remove any null blocks in place. Parameters: emptybool, default: TrueRemove any meshes that are empty as well (have zero points). Examples >>> import pyvista as pv >>> data = {'cube': pv.Cube(), 'empty': pv.PolyData()} >>> blocks = pv.MultiBlock(data) >>> blocks.clean(empty=True) >>> blocks.keys() ['cube']