def METHOD_NAME(img_3d_mni, affine_mni):
    """Smoke test coordinate finder with mask."""
    masked_img = Nifti1Image(
        np.ma.masked_equal(get_data(img_3d_mni), 0),
        affine_mni,
    )
    plot_stat_map(masked_img, display_mode="x")
    plt.close()