Use underscore

Author: rhshadrach

pandas/plotting/_misc.py

@@ -633,7 +633,7 @@ def lag_plot(series: Series, lag: int = 1, ax: Axes | None = None, **kwds) -> Ax
     .. plot::
         :context: close-figs
 
-        >>> pd.plotting.lag_plot(s, lag=1)
+        >>> _ = pd.plotting.lag_plot(s, lag=1)
     """
     plot_backend = _get_plot_backend("matplotlib")
     return plot_backend.lag_plot(series=series, lag=lag, ax=ax, **kwds)