Function format_gcode_meatpack 

pub fn format_gcode_meatpack<'a: 'b, 'b, W, I, T>(
    program: I,
    opts: FormatOptions,
    meatpack_opts: MeatpackOptions,
    w: W,
) -> Result<()>
where
    W: IoWrite,
    I: IntoIterator<Item = T>,
    T: Borrow<Token<'a>> + 'b,

Write g-code to a std::io::Write in a meatpacked representation