def METHOD_NAME(self, factor=0.2, nested=False, progress_bar=False):
    """Produce an outline of the corners for the all blocks in this composite dataset.
    Parameters
    ----------
    factor : float, default: 0.2
        Controls the relative size of the corners to the length of
        the corresponding bounds.
    nested : bool, default: False
        If ``True``, these creates individual outlines for each nested dataset.
    progress_bar : bool, default: False
        Display a progress bar to indicate progress.
    Returns
    -------
    pyvista.PolyData
        Mesh containing outlined corners.
    """
    if nested:
        return DataSetFilters.METHOD_NAME(self, factor=factor, progress_bar=progress_bar)
    box = pyvista.Box(bounds=self.bounds)
    return box.METHOD_NAME(factor=factor, progress_bar=progress_bar)