如何知道从磁盘上的何处加载模块?

我有一个模块 @vendorname/functions npm list

$ npm ls @vendorname/functions
serverless-commerce@1.0.0 C:\Users\mikem\OneDrive\Documents\myapp\myapp
`-- (empty)

根据演示文件,它也不存在:

$ node
> require("@vendorname/functions")
{ Error: Cannot find module '@vendorname/functions'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:580:15)
    at Function.Module._load (internal/modules/cjs/loader.js:506:25)
    at Module.require (internal/modules/cjs/loader.js:636:17)
    at require (internal/modules/cjs/helpers.js:20:18) code: 'MODULE_NOT_FOUND' }

C:\Users\mikem\OneDrive\Documents\myapp\myapp 使用该模块并正常工作的:

let vendornameFunctions = require("@vendorname/functions"),

log(`>>> MYSTERY FILE IS BEING IMPORTED ${JSON.dumps(vendornameFunctions, null, 2)}`);

>>> MYSTERY FILE IS BEING IMPORTED {
    "events": {},
    "queues": {},
    "tables": {},
    "html": {},
    "json": {},
    "css": {},
    "js": {},
    "text": {},
    "xml": {}
}

我可以可靠地复制这种行为。 如何确定从磁盘上的何处加载模块?