def adata():
    adata = ad.AnnData(np.zeros((100, 100)))
    adata.obsm["o"] = np.zeros((100, 50))
    adata.varm["o"] = np.zeros((100, 50))
    return adata
def draw_error(layout, message):
        lines = message.split("\n")
        box = layout.box()
        sub = box.row()
        sub.label(lines[0])
        sub.label(icon='ERROR')
        for l in lines[1:]:
            box.label(l)