Add new Model

[cripariv]

how you use "add" method if your code on nodejs not allow "import sentence" in my case I am using require to use collection, add, set, update methods but it didn't work

`
const firestore = require("firebase/firestore")

const { collection, add } = require("typesaurus")

const admin = require("firebase-admin")

const { MOCK_MODELS } = require("./mock");
const { Metadata } = require("./cpr_models/metadata.js");

const port = 3000;
const PROJECT_ID = "dummy-project-id" // este id se encuentra en la service account de firebase

admin.initializeApp({
credential: admin.credential.applicationDefault(),
projectId: PROJECT_ID,
databaseURL: "https://${PROJECT_ID}.firebaseio.com"
});

const metadatas = collection('metadatas')

MOCK_MODELS.forEach(async doc => {
await add(metadatas,doc)
// await Typesaurus.add(metadatas,doc)
// await Typesaurus.schema.apply("add",[metadatas,doc])
// await Typesaurus.schema.add(metadatas,doc)
});
`

Error displayed
App listening on port 3000 test_project-test_project-1 | /firestore/test_project/index.js:49 test_project-test_project-1 | await add(metadatas,doc) test_project-test_project-1 | TypeError: add is not a function test_project-test_project-1 | at /firestore/test_project/index.js:49:11

I hope that you can help me please.