def downgrade(nb):
    if nb.nbformat != 3:
        return nb
    nb.nbformat = 2
    for ws in nb.worksheets:
        for cell in ws.cells:
            if cell.cell_type == 'heading':
                heading_to_md(cell)
            elif cell.cell_type == 'raw':
                raw_to_md(cell)
    return nb
Get time to verify a page
dataset/ETHPy150Open astroML/sklearn_tutorial/doc/notebooks/nbconvert.py/downgrade--crossover with--dataset/ETHPy150Open mbedmicro/pyOCD/pyOCD/flash/flash_builder.py/flash_page.getVerifyWeight