我收到来自 api 的请求。我怎样才能从中得到 file_url ?

I am getting request from api. How can I get the file_url from it?

代码:

 response = requests.get('https://safebooru.org/index.php?page=dapi&s=post&q=index&limit=1')
        print(response.content)
        await channel.send(response.content)

要求: enter image description here

from xml.etree import ElementTree

@commands.command()
async def sb(self, ctx):
    response = requests.get('https://safebooru.org/index.php?page=dapi&s=post&q=index&limit=1')
    tree = ElementTree.fromstring(response.content)
    file_urls = [t.get('file_url') for t in tree]
    ...