human
Complete the below
def _patchTextFileLogObserver(patch):

    ''''Patch L{logger.textFileLogObserver} to record every call and keep a
    reference to the passed log file for tests.
    @param patch: a callback for patching (usually L{unittest.TestCase.patch}).
    @return: the list that keeps track of the log files.
    @rtype: C{list}'
    '''

Write me a the Python code you requested?
assistant
#Here is the Python code you requested.
    logFiles = []
    oldFileLogObserver = logger.textFileLogObserver
    def observer(logFile, *args, **kwargs):
        logFiles.append(logFile)
        return oldFileLogObserver(logFile, *args, **kwargs)
    patch(logger, 'textFileLogObserver', observer)
    return logFiles