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import time
def main(request, response):
response.headers.set(b'Content-Type', b'text/event-stream')
response.headers.set(b'Cache-Control', b'no-cache')
response.write_status_headers()
while True:
response.writer.write(u"data:msg")
response.writer.write(u"\n")
response.writer.write(u"data: msg")
response.writer.write(u"\n\n")
response.writer.write(u":")
response.writer.write(u"\n")
response.writer.write(u"falsefield:msg")
response.writer.write(u"\n\n")
response.writer.write(u"falsefield:msg")
response.writer.write(u"\n")
response.writer.write(u"Data:data")
response.writer.write(u"\n\n")
response.writer.write(u"data")
response.writer.write(u"\n\n")
response.writer.write(u"data:end")
response.writer.write(u"\n\n")
time.sleep(2)