remove hardcoded model parameter and make it configurable

[ValorLin]

fix: remove hardcoded model parameter and make it configurable

• Replace hardcoded model strings with the defaultModel value
• Modify RealtimeClient connect method to pass model parameter to RealtimeAPI
• Add defaultModel property to RealtimeAPI class
• Add test case for connecting with a specific model

Fix #89

[mhjacobson]

Thanks for the patch! It fixed the bug for me, and I recommend they take it.

[djfm]

Lol I had not seen this PR, I've opened my own to solve the same issue.

We have slightly different approaches, I've opted to make the choice of the model a required parameter of the client's connect method because using the wrong model can cost you like 15x more than you intended.

So my thinking was that the model arg needs to either be explicit or the default should be the cheapest one (blah-blah-mini).

I realize I should probably make it mandatory in the API's connect method too if I want to be consistent.

OpenAI doesn't care about PRs I assume, seeing the date of yours?