我如何找出一个标签是否包含一个img作为锚点

from bs4 import BeautifulSoup

def is_img_anchor(tag):
    if tag.name == "img":
        return True
    for child in tag.children:
        if isinstance(child, str):
            continue
        if is_img_anchor(child):
            return True
    return False

def find_img_anchor(html):
    soup = BeautifulSoup(html, "html.parser")
    return is_img_anchor(soup)

# 示例用法
html = "<div><a href='#'><img src='image.jpg'></a></div>"
contains_img = find_img_anchor(html)
print(contains_img)  # 输出：True