curl --request POST \
  --url https://api.illocution.ai/analyze/live/{session_id}/chunk \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-API-Key: <api-key>' \
  --form chunk_seq=0 \
  --form chunk='@example-file'

{
  "received_bytes": 123,
  "next_chunk_seq": 123
}