curl --request POST \
  --url https://app.herondata.io/api/broker_funder_policies/upload/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "file_base64": "<string>",
  "filename": "<string>"
}
'

{
  "created": "2023-11-07T05:31:56Z",
  "error_count": 123,
  "error_details": {},
  "error_message": "<string>",
  "filename": "<string>",
  "finished_at": "2023-11-07T05:31:56Z",
  "heron_id": "<string>",
  "last_updated": "2023-11-07T05:31:56Z",
  "processed_count": 123,
  "results_summary": {},
  "started_at": "2023-11-07T05:31:56Z",
  "success_count": 123,
  "total_count": 123
}