How to use the nanocomp.compplots.n50_barplot function in NanoComp

def make_plots(df, settings):
    utils.plot_settings(dict(), dpi=settings["dpi"])
    df["log length"] = np.log10(df["lengths"])
    plots = []
    plots.extend(
        compplots.output_barplot(
            df=df,
            figformat=settings["format"],
            path=settings["path"],
            title=settings["title"],
            palette=settings["colors"])
    )
    plots.extend(
        compplots.n50_barplot(
            df=df,
            figformat=settings["format"],
            path=settings["path"],
            title=settings["title"],
            palette=settings["colors"])
    )
    plots.extend(
        compplots.violin_or_box_plot(
            df=df[df["length_filter"]],
            y="lengths",
            figformat=settings["format"],
            path=settings["path"],
            y_name="Read length",
            plot=settings["plot"],
            title=settings["title"],
            palette=settings["colors"])