curl --request POST \
  --url https://api.example.com/v1/sdk/usages/bulk \
  --header 'Content-Type: application/json' \
  --data '
{
  "events": [
    {
      "customerRef": "<string>",
      "productRef": "<string>",
      "action": "<string>",
      "units": 123
    }
  ]
}
'