use std::fmt::Write;
use crate::ctx::GenContext;
pub fn gen(ctx: &mut GenContext<'_>, buf: &mut String) {
let carriers = ["BCBS", "UHC", "AETNA", "CIGNA", "HUM"];
let c = carriers[ctx.rng.urange(0, carriers.len() - 1)];
let n = ctx.rng.range(100_000_000, 999_999_999);
buf.reserve(c.len() + 1 + 9);
buf.push_str(c);
let _ = write!(buf, "-{n}");
}