use crate::ctx::GenContext;
pub fn gen(ctx: &mut GenContext<'_>, buf: &mut String) {
// hex(8) + "-" + hex(4) + "-4" + hex(3) + "-" + charset(1) + hex(3) + "-" + hex(12) = 36
buf.reserve(36);
ctx.rng.push_hex(buf, 8);
buf.push('-');
ctx.rng.push_hex(buf, 4);
buf.push_str("-4");
ctx.rng.push_hex(buf, 3);
buf.push('-');
ctx.rng.push_charset(buf, b"89ab", 1);
ctx.rng.push_hex(buf, 3);
buf.push('-');
ctx.rng.push_hex(buf, 12);
}