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use openai_api_rs::v1::api::Client;
use openai_api_rs::v1::completion::{self, CompletionRequest};
use std::env;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new(env::var("OPENAI_API_KEY").unwrap().to_string());
    let req = CompletionRequest {
        model: completion::GPT3_TEXT_DAVINCI_003.to_string(),
        prompt: Some(String::from("What is Bitcoin?")),
        suffix: None,
        max_tokens: Some(3000),
        temperature: Some(0.9),
        top_p: Some(1.0),
        n: None,
        stream: None,
        logprobs: None,
        echo: None,
        stop: Some(vec![String::from(" Human:"), String::from(" AI:")]),
        presence_penalty: Some(0.6),
        frequency_penalty: Some(0.0),
        best_of: None,
        logit_bias: None,
        user: None,
    };
    let result = client.completion(req).await?;
    println!("{:}", result.choices[0].text);

    Ok(())
}

// OPENAI_API_KEY=xxxx cargo run --package openai-api-rs --example completion