Expose content of Chat.Message

[sulsanaul]

This directly exposes the content string of the Message object, which makes handling the response from a call to the chat endpoint easier. Alternatively, Message could be a struct instead of an enum? Lmk what you think.

Example usage

let response = try await openAIClient.chats.create(
    model: Model.GPT3.gpt3_5Turbo,
    messages: [userMessage]
)

let message: Chat.Message = response.choices.first!.message 
// .assistant(content: "This is message content.")

let content: String = message.content 
// This is message content.

[dylanshine]

This is a good change, thank you for your contribution!

[sulsanaul]

yw – appreciate you making this package 🙂