type ProtocolVersionType = string & {
  readonly __tag: "ProtocolVersion";
};

import * as ProtocolVersion from './primitives/ProtocolVersion/index.js';

const version = ProtocolVersion.from("eth/68");

import { ETH_68, SNAP_1 } from './primitives/ProtocolVersion/index.js';

console.log(ETH_68);  // "eth/68"
console.log(SNAP_1);  // "snap/1"

const isEqual = ProtocolVersion.equals("eth/67", "eth/68");
// false

const comparison = ProtocolVersion.compare("eth/66", "eth/68");
// -2 (eth/66 is 2 versions behind eth/68)

const str = ProtocolVersion.toString("eth/68");
// "eth/68"

// Example peer capabilities
const peerCaps = [
  ProtocolVersion.from("eth/68"),
  ProtocolVersion.from("eth/67"),
  ProtocolVersion.from("snap/1"),
];

// Find highest compatible ETH version
const ethVersions = peerCaps.filter(v => v.startsWith("eth/"));
const highest = ethVersions.sort(ProtocolVersion.compare).pop();