Get a two-dimension usage breakdown

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{
  "cells": [
    {
      "billed_cost": 123,
      "column": 123,
      "input_tokens": 123,
      "output_tokens": 123,
      "requests": 123,
      "row": 123,
      "total_cost": 123,
      "total_tokens": 123
    }
  ],
  "column_dimension": "",
  "columns": [
    {
      "folded": 123,
      "key": "<string>",
      "other": true
    }
  ],
  "metric": "cost",
  "row_dimension": "",
  "rows": [
    {
      "folded": 123,
      "key": "<string>",
      "other": true
    }
  ]
}

{
  "code": "<string>",
  "message": "<string>",
  "param": "<string>",
  "provider": "<string>",
  "status_code": 123,
  "type": "provider_error"
}

{
  "code": "<string>",
  "message": "<string>",
  "param": "<string>",
  "provider": "<string>",
  "status_code": 123,
  "type": "provider_error"
}

{
  "code": "<string>",
  "message": "<string>",
  "param": "<string>",
  "provider": "<string>",
  "status_code": 123,
  "type": "provider_error"
}