Create a new message in the specified thread.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
The id of the thread to create a message for.
The prompt(s) to generate completions for, encoded as a string, array of strings, array of tokens, or array of token arrays.
Note that <|endoftext|> is the document separator that the model sees during training, so if a prompt is not specified the model will generate as if from the beginning of a new document.
The role of the entity that is creating the message.
user, assistant The ID of the assistant to use to execute this run.
Successful response
A message object.