// Report each billable step against the running budget.
const { result, error } = await unprice.runs.consume({
  runId: "brun_123",
  featureSlug: "ai-tools",
  eventSlug: "completions",
  idempotencyKey: "run:req_123:step_1",
  // One event can carry the properties used by several feature meters.
  properties: {
    aiTools: 3,
    inputTokens: 1840,
    outputTokens: 620,
    step: "summarize"
  }
});

if (error) {
  console.error(error.message);
  return;
}

if (!result.accepted) {
  console.log(result.reason);
  return;
}

console.log(result.run.remainingAmountMinor);

{
  "accepted": true,
  "reason": "accepted",
  "run": {
    "runId": "brun_123",
    "status": "running",
    "customerId": "cus_1234567890",
    "budgetAmountMinor": 5000,
    "consumedAmountMinor": 1200,
    "remainingAmountMinor": 3800,
    "currency": "USD",
    "workloadType": "workflow",
    "workloadId": "wf_summary_123",
    "traceId": "trace_123",
    "parentRunId": null
  }
}