How to use the @graffy/common.descend function in @graffy/common

async read(...args) {
    const [path, porcelainQuery, options] = validateArgs(...args);
    const query = wrap(makeQuery(porcelainQuery), path);
    const result = await this.call('read', query, options || {});
    return descend(decorate(result), path);
  }

async write(...args) {
    const [path, porcelainChange, options] = validateArgs(...args);
    const change = wrap(makeGraph(porcelainChange), path);
    const writtenChange = await this.call('write', change, options || {});
    return descend(decorate(writtenChange), path);
  }
}

async *watch(...args) {
    const [path, porcelainQuery, options] = validateArgs(...args);
    const query = wrap(makeQuery(porcelainQuery), path);
    const stream = this.call('watch', query, options || {});
    for await (const value of stream) yield descend(decorate(value), path);
  }