import matplotlib.pyplot as plt

def test(layout, labelled=False):
    ll = labelled
    fig = plt.figure(figsize=(4, 9), layout=layout)
    fig.suptitle(f'Labelled = {not labelled}', fontsize='small')
    figures = fig.subfigures(4, 1)
    for f in figures.flatten():
        gs = f.add_gridspec(2, 2)
        for i in range(2):
            ax = f.add_subplot(gs[i, 0])
            ax.plot()
            if not labelled:
                ax.set_xlabel('BOOO', fontsize='large')
                labelled = True
        f.add_subplot(gs[:, 1]).plot()
    fig.savefig(f'fig_{not ll}.png')
test("constrained")
#test("constrained", labelled=True)
plt.show()