human
I wrote the below code

    logMessages = []
    class fakesyslogobserver(object, ):
        def __init__(self, prefix):
            logMessages.append(prefix)
        def emit(self, eventDict):
            logMessages.append(eventDict)
    testCase.patch(syslog, 'SyslogObserver', fakesyslogobserver)
    return logMessages

What's a good function header?

=====
Here's a good function header?
assistant
#Here's a good function header.

def _setupSyslog(testCase):