path: root/test/python/server_port/asgi.py

async def application(scope, receive, send):
    assert scope['type'] == 'http'

    await send({
        'type': 'http.response.start',
        'status': 200,
        'headers': [
            (b'content-length', b'0'),
            (b'server-port', str(scope['server'][1]).encode()),
        ]
    })