Method transact

src/utils/Doc.js:186–188

* Changes that happen inside of a transaction are bundled. This means that * the observer fires _after_ the transaction is finished and that all changes * that happened inside of the transaction are sent as one message to the * other peers. * * @template T * @param {function(Transa

(f, origin = null)

   * @public
   */
  transact (f, origin = null) {
    return transact(this, f, origin)
  }

  /**
   * Define a shared data type.