zeit-pkg是一个打包节点代码的工具。zeit-pkg也支持require('arangojs')。但是zeit-pkg返回了错误，因为满足const db = require('@arangodb').db;。

> Error! TypeError: Cannot read property '0' of null
    at shortFromAlias (/usr/local/lib/node_modules/pkg/lib-es5/walker.js:69:49)
    at Walker._callee5$ (/usr/local/lib/node_modules/pkg/lib-es5/walker.js:894:25)
    at tryCatch (/usr/local/lib/node_modules/pkg/node_modules/regenerator-runtime/runtime.js:62:40)
    at Generator.invoke [as _invoke] (/usr/local/lib/node_modules/pkg/node_modules/regenerator-runtime/runtime.js:296:22)
    at Generator.prototype.(anonymous function) [as throw] (/usr/local/lib/node_modules/pkg/node_modules/regenerator-runtime/runtime.js:114:21)
    at step (/usr/local/lib/node_modules/pkg/node_modules/babel-runtime/helpers/asyncToGenerator.js:17:30)
    at /usr/local/lib/node_modules/pkg/node_modules/babel-runtime/helpers/asyncToGenerator.js:30:13
    at <anonymous>

我想知道require('@arangodb').db有什么特别之处，写事务有没有替换方法，或者其他包工具可以支持require('@arangodb').db;