def get_tempurl_keys_from_metadata(meta):
    return [get_valid_utf8_str(value) for key, value in meta.items()
            if key.lower() in ('temp-url-key', 'temp-url-key-2')]
Checks if there are messages to send to the server and sends them
dataset/ETHPy150Open openstack/swift/swift/common/middleware/tempurl.py/get_tempurl_keys_from_metadata--crossover with--dataset/ETHPy150Open Diastro/Zeek/src/client.py/WorkingNode.outputThread