AWS Amplify: query multiple models from function handler

I want to combine in a response, various attributes from different (non-related-)tables.

I'm using amplify with an Angular 19 project, my data is being stored in DynamoDB tables.

Here's an example of what I wanna do:

./amplify/data/resource.ts:

import { type ClientSchema, a, defineData } from '@aws-amplify/backend';
import { fetchManyModels } from './queries/fetch-many-models/resource';

const schema = a.schema({
FetchManyModels: a
.query()
.returns(a.string())
.handler(a.handler.function(fetchManyModels)),
...


./amplify/data/queries/fetch-many-models/handler.ts:

import type { Schema } from "../../resource"
import { env } from "$amplify/env/fetch-many-models"

export const handler: Schema["FetchManyModels"]["functionHandler"] = async (event) => {
const model1 = data_from_somewhere.MyModel_1;
const model2 = data_from_somewhere.MyModel_2;

return model1.tostring() + model2.toString();
}

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