def application(environ, start_response):
    status = "200 OK"
    headers = {
        "Content-type": "text/html",
    }
    payload = (
        b"<!DOCTYPE html>"
        b"<html>"
        b"<head>"
        b"<title>Z37</title>"
        b'<meta charset="utf-8">'
        b"</head>"
        b"<body>"
        b"<h1>Z37 study project</h1>"
        b"<hr>"
        b"<p>This is a study project.</p>"
        b"</body>"
        b"</html>"
    )

    start_response(status, list(headers.items()))

    yield payload

00cb25db41da0aa5563ede2473075eb6cecb0452
<mask token>

def application(environ, start_response):
    status = '200 OK'
    headers = {'Content-type': 'text/html'}
    payload = (
        b'<!DOCTYPE html><html><head><title>Z37</title><meta charset="utf-8"></head><body><h1>Z37 study project</h1><hr><p>This is a study project.</p></body></html>'
        )
    start_response(status, list(headers.items()))
    yield payload

def application(environ, start_response):
    status = "200 OK"
    headers = {
        "Content-type": "text/html",
    }
    payload = (
        b"<!DOCTYPE html>"
        b"<html>"
        b"<head>"
        b"<title>Z37</title>"
        b'<meta charset="utf-8">'
        b"</head>"
        b"<body>"
        b"<h1>Z37 study project</h1>"
        b"<hr>"
        b"<p>This is a study project.</p>"
        b"</body>"
        b"</html>"
    )

    start_response(status, list(headers.items()))

    yield payload
