use std::sync::Arc; use gemini_rs::prelude::*; use gcp_auth::AuthenticationManager; #[tokio::main] async fn main() -> Result<(), Box> { let authentication_manager = Arc::new(AuthenticationManager::new().await?); let api_endpoint = std::env::var("API_ENDPOINT")?; let project_id = std::env::var("PROJECT_ID")?; let location_id = std::env::var("LOCATION_ID")?; let gemini = GeminiClient::new( authentication_manager, api_endpoint, project_id, location_id, ); let prompt = "What is the airspeed of an unladen swallow?"; let request = CountTokensRequest { contents: Content { role: "user".to_string(), parts: Some(vec![Part::Text(prompt.to_string())]), }, }; let result = gemini.count_tokens(&request, "gemini-pro").await?; println!("Response: {:?}", result); Ok(()) }