curl --request POST \
  --url https://api.example.com/chatbots/query-single-message/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "query_str": "<string>",
  "assistant_id": "<string>",
  "conversation_id": "<string>",
  "image_str": "<string>",
  "completion_kwargs": {}
}
'

{
  "query_str": "<string>",
  "response": "<string>",
  "usage": {
    "input_tokens": 123,
    "output_tokens": 123
  }
}