curl --request POST \
  --url http://localhost/api/v3/imports/file \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file' \
  --form mapping_fields='@example-file' \
  --form 'name=<string>' \
  --form importable_type=benefit_definition \
  --form importable_id=123 \
  --form 'meta=<string>'

{
  "data": {
    "id": 123,
    "status": "<string>",
    "name": "<string>",
    "count": 123,
    "failed_count": "<string>",
    "progress": "<string>",
    "issued_at": "<string>",
    "condition": [
      "<unknown>"
    ],
    "run_condition_on_issue_date": true,
    "exclude_if_related_exists": true,
    "use_condition": true,
    "mapping_fields": "<string>",
    "meta": [
      "<unknown>"
    ],
    "importable_type": "<string>",
    "importable_id": 123,
    "created_at": "<string>",
    "updated_at": "<string>"
  }
}