_bulk (table, options, callback) {
    if (!this.parent) {
      return setImmediate(callback, new RequestError('No connection is specified for that request.', 'ENOCONN'))
    }

    if (!this.parent.connected) {
      return setImmediate(callback, new ConnectionError('Connection is closed.', 'ECONNCLOSED'))
    }

    this.canceled = false
    setImmediate(callback)
  }
@private
@param {Table} table
@param {object} options
@param {Request~bulkCallback} callback