我在废弃网站时试图绕过 Hcaptcha，但我找到了 anti-captcha.com 服务，但是要请求工作人员解决验证码，我需要一个名为 site_key 的参数。我的问题在哪里可以找到该值？
api_key = '....'
site_key = '...' # grab from site
client = AnticaptchaClient(api_key)
task = NoCaptchaTaskProxylessTask(url, site_key)
job = client.createTask(task)
print("Waiting to solution by Anticaptcha workers")
job.join()
# Receive response
response = job.get_solution_response()
print("Received solution", response)
# Inject response in webpage
driver.execute_script('document.getElementById("g-recaptcha-response").innerHTML > = "%s"' % response)
# Wait a moment to execute the script (just in case).
time.sleep(1)
# Press submit button
driver.find_element_by_xpath('//button[@type="submit" and @class="btn-std"]').click()