Function set_print_options 

pub fn set_print_options(
    ws: &mut WorksheetXml,
    grid_lines: Option<bool>,
    headings: Option<bool>,
    h_centered: Option<bool>,
    v_centered: Option<bool>,
) -> Result<()>

Set print options on a worksheet.

Only non-None parameters are applied; existing values for None parameters are preserved.