docs: function openOutputTransform(headers/*, data*/) {
    /*jshint validthis:true */
    var operation = this;
  
    var txid = headers.location.substring('/v1/transactions/'.length);
  
    if (operation.withState === true) {
      return new mlutil.Transaction(txid, operation.rawHeaders['set-cookie']);
    }
  
    return {txid: txid};
  }