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def main(request, response):
"""
Simple handler that sets a response header based on which client hint
request headers were received.
"""
response.headers.append(b"Access-Control-Allow-Origin", b"*")
response.headers.append(b"Access-Control-Allow-Headers", b"*")
response.headers.append(b"Access-Control-Expose-Headers", b"*")
if b"sec-ch-device-memory" in request.headers:
response.headers.set(b"device-memory-received", request.headers.get(b"sec-ch-device-memory"))
if b"device-memory" in request.headers:
response.headers.set(b"device-memory-deprecated-received", request.headers.get(b"device-memory"))