import time
def main(request, response):
response.headers.set(b"Content-Type", b"text/html")
response.status = 200
response.write_status_headers()
# Chunk 1: Setup target and start template with first child, then start interval observer
response.writer.write_content(b"""
Original Content
One
""")
# Yield and wait to allow the interval to fire while the template is still open
time.sleep(0.5)
# Chunk 2: Append second child, close template, clear interval and post result
response.writer.write_content(b""" Two
""")