在页面对象模型中应该把隐式等待放在哪里？

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

class BasePage:
    def __init__(self, driver):
        self.driver = driver
        self.driver.implicitly_wait(10)  # 设置隐式等待时间为10秒

    def find_element(self, locator):
        return self.driver.find_element(*locator)

    def wait_for_element(self, locator):
        wait = WebDriverWait(self.driver, 10)
        return wait.until(EC.visibility_of_element_located(locator))

class LoginPage(BasePage):
    # 页面对象的具体实现
    pass

class HomePage(BasePage):
    # 页面对象的具体实现
    pass

# 在测试用例中使用页面对象
driver = webdriver.Chrome()
login_page = LoginPage(driver)
login_page.wait_for_element((By.ID, 'username'))