open_ai_rust 0.2.16

Open AI SDK for Rust. To my knowledge, the only fully comprehensive and up-to-date Open AI crate built in and for Rust. Provides both low-level control with high level ergonomics for doing cool things (the whole reason we use Rust in the first place). Is maintained and has been used and tested in products used in production.
Documentation 
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#[cfg(test)]
mod tests {
    use open_ai_rust::{logoi::{input::payload::templates::PayLoadTemplates, message::{ChatMessage, ChatMessageRole}}, requests::open_ai_msg, set_key};

    #[tokio::test]
    async fn can_do_regular_chat_completion() {
        dotenv::dotenv().ok();
        set_key(std::env::var("OPENAI_SK").unwrap()); // Set the OpenAI API key from the environment variable

        let system_msg = ChatMessage {
            role: ChatMessageRole::System,
            content: "You are part of a test in a Rust program. Respond with an exact copy of the user msg.".to_string(),
            name: None
        };

        let user_msg = ChatMessage {
            role: ChatMessageRole::User,
            content: "Hello world!".to_string(),
            name: None
        };

        let payload = PayLoadTemplates::default(vec![system_msg, user_msg]);

        let response = open_ai_msg(payload.to_payload()).await.unwrap();
        assert_eq!(response.choices[0].message.content, Some("Hello world!".to_string()));
        assert_eq!(response.choices.len(), 1);
    }
}