feat: add SSE streaming, thinking models, and modernized Part struct

src/token_provider.rs

@@ -1,18 +1,18 @@
-use std::sync::Arc;
-
-use crate::error::Result;
-
-pub trait TokenProvider {
-    fn get_token(&self, scope: &[&str])
-        -> impl std::future::Future<Output = Result<String>> + Send;
-}
-
-impl TokenProvider for Arc<dyn gcp_auth::TokenProvider + '_> {
-    async fn get_token(&self, scope: &[&str]) -> Result<String> {
-        let token = self.token(scope).await;
-        match token {
-            Ok(token) => Ok(token.as_str().to_string()),
-            Err(e) => Err(e.into()),
-        }
-    }
-}
+use std::sync::Arc;
+
+use crate::error::Result;
+
+pub trait TokenProvider {
+    fn get_token(&self, scope: &[&str])
+    -> impl std::future::Future<Output = Result<String>> + Send;
+}
+
+impl TokenProvider for Arc<dyn gcp_auth::TokenProvider + '_> {
+    async fn get_token(&self, scope: &[&str]) -> Result<String> {
+        let token = self.token(scope).await;
+        match token {
+            Ok(token) => Ok(token.as_str().to_string()),
+            Err(e) => Err(e.into()),
+        }
+    }
+}