How to access data from Array Aggregator in JSON Creator module?

How To
1

I have an Array Aggregator (module 137) that collects 3 collections. Each collection contains JSON data like:

{
“input_tokens”: 12001,
“output_tokens”: 6386,
“chunk_cost_usd”: 0.0056175
}

In my JSON Creator module (138), I need to sum the values from all collections.

I tried:

  • {{sum(map(137.array; "input_tokens"))}} → Error: Property 137.array doesn’t exist
  • {{sum(map(137; "input_tokens"))}} → Error: ‘137’ is not a valid array

How do I properly access and map the aggregated data? What’s the correct syntax to reference collections from an Array Aggregator?