Function builtin_axis 

fn builtin_axis(
    _args: &[RValue],
    _named: &[(String, RValue)],
) -> Result<RValue, RError>

Add an axis to the current plot.

Axes are handled automatically by egui_plot, so this is a no-op that exists for compatibility with R code that calls axis().

@param side which side (1=bottom, 2=left, 3=top, 4=right) @return NULL (invisibly)