How to use the @geut/chast.createRelease function in @geut/chast

}

    // define the urls
    let releaseUrl;
    if (gitTemplate && gitBranch) {
      const lastRelease = releases[0];

      if (lastRelease) {
        releaseUrl = gitTemplate.replace('[prev]', `v${lastRelease.version}`).replace('[next]', `v${version}`);
      }

      // in the future the template v[version] could be defined by the user, maybe?
      unreleased.url = gitTemplate.replace('[prev]', `v${version}`).replace('[next]', gitBranch);
    }

    const newRelease = createRelease(
      {
        identifier: version.toLowerCase(),
        version,
        url: releaseUrl,
        yanked: isYanked,
        date
      },
      changes
    );

    tree.children = [preface, unreleased, newRelease, ...releases];
    return tree;
  }

function compile(tree, file) {
    const preface = select('preface', tree);

    if (preface && !overwrite) {
      file.fail(new Error('The changelog already exists.'), preface, 'addPreface');
    }

    tree.children = [
      createPreface(parse(tplPreface)),
      createRelease({
        identifier: 'unreleased',
        version: 'Unreleased',
        unreleased: true
      })
    ];

    return tree;
  }