[Request] Support Cohere API

[missuo]

🥰 Feature Description

Can we consider supporting Cohere's API?

Currently, it support the Command R+ series of models and more.

Here is the API documentation:

https://docs.cohere.com/reference/chat

🧐 Proposed Solution

N/A

📝 Additional Information

No response

[lobehubbot]

👀 @missuo

Thank you for raising an issue. We will investigate into the matter and get back to you as soon as possible.
Please make sure you have given us as much context as possible.
非常感谢您提交 issue。我们会尽快调查此事，并尽快回复您。 请确保您已经提供了尽可能多的背景信息。

[hidenmaskvip]

+1, need cohere.