curl --request POST \
  --url https://{environment}.userpilot.io/v1/imports \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file'

{
  "end_time": "<string>",
  "file_size": "<string>",
  "filename": "<string>",
  "job_id": "<string>",
  "links": "<string>",
  "start_time": "<string>",
  "status": "queued",
  "total_rows": "<string>"
}