更新上下文缓存

from datetime import datetime as dt from datetime import timezone as tz from datetime import timedelta  from google import genai from google.genai.types import HttpOptions, UpdateCachedContentConfig  client = genai.Client(http_options=HttpOptions(api_version="v1"))  # Get content cache by name # cache_name = "projects/111111111111/locations/us-central1/cachedContents/1111111111111111111" content_cache = client.caches.get(name=cache_name) print("Expire time", content_cache.expire_time) # Example response #   Expire time 2025-02-20 15:50:18.434482+00:00  # Update expire time using TTL content_cache = client.caches.update(     name=cache_name, config=UpdateCachedContentConfig(ttl="36000s") ) time_diff = content_cache.expire_time - dt.now(tz.utc) print("Expire time(after update):", content_cache.expire_time) print("Expire time(in seconds):", time_diff.seconds) # Example response #   Expire time(after update): 2025-02-14 01:51:42.571696+00:00 #   Expire time(in seconds): 35999  # Update expire time using specific time stamp next_week_utc = dt.now(tz.utc) + timedelta(days=7) content_cache = client.caches.update(     name=cache_name, config=UpdateCachedContentConfig(expireTime=next_week_utc) ) print("Expire time(after update):", content_cache.expire_time) # Example response #   Expire time(after update): 2025-02-20 15:51:42.614968+00:00

import ( 	"context" 	"fmt" 	"io" 	"time"  	genai "google.golang.org/genai" )  // updateContentCache shows how to update content cache expiration time. func updateContentCache(w io.Writer, cacheName string) error { 	ctx := context.Background()  	client, err := genai.NewClient(ctx, &genai.ClientConfig{ 		HTTPOptions: genai.HTTPOptions{APIVersion: "v1"}, 	}) 	if err != nil { 		return fmt.Errorf("failed to create genai client: %w", err) 	}  	// Update expire time using TTL 	resp, err := client.Caches.Update(ctx, cacheName, &genai.UpdateCachedContentConfig{ 		TTL: time.Duration(time.Duration.Seconds(36000)), 	}) 	if err != nil { 		return fmt.Errorf("failed to update content cache exp. time with TTL: %w", err) 	}  	fmt.Fprintf(w, "Cache expires in: %s\n", time.Until(resp.ExpireTime)) 	// Example response: 	// Cache expires in: 10h0m0.005875s  	// Update expire time using specific time stamp 	inSevenDays := time.Now().Add(7 * 24 * time.Hour) 	resp, err = client.Caches.Update(ctx, cacheName, &genai.UpdateCachedContentConfig{ 		ExpireTime: inSevenDays, 	}) 	if err != nil { 		return fmt.Errorf("failed to update content cache expire time: %w", err) 	}  	fmt.Fprintf(w, "Cache expires in: %s\n", time.Until(resp.ExpireTime)) 	// Example response: 	// Cache expires in: 167h59m59.80327s  	return nil }