Function interp_svg 

fn interp_svg(
    args: &[RValue],
    named: &[(String, RValue)],
    context: &BuiltinContext<'_>,
) -> Result<RValue, RError>

Open an SVG graphics device.

Subsequent plot commands will accumulate data. When dev.off() is called, the plot is rendered to an SVG file.

@param filename output file path @param width width in inches (default 7) @param height height in inches (default 7) @return NULL (invisibly)