def METHOD_NAME(request, response):
    handler = lambda data: generate_payload(request, data)
    content_type = b'application/x-font-truetype'
    if b"report-headers" in request.GET:
        handler = lambda data: generate_report_headers_payload(request, data)
        content_type = b'application/json'
    subresource.respond(request,
                        response,
                        payload_generator = handler,
                        content_type = content_type,
                        access_control_allow_origin = b"*")