curl --request POST \
  --url http://localhost:8000/api/sessions/{session_id}/transcripts \
  --header 'Content-Type: application/json' \
  --data '
{
  "content": "<string>",
  "speaker": "USER",
  "session_id": "<string>"
}
'

{
  "content": "<string>",
  "speaker": "USER",
  "id": "<string>",
  "session_id": "<string>",
  "timestamp": "2023-11-07T05:31:56Z"
}