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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _csf_to_list(option):
    '''
    Extract comma-separated values from a csf.conf
    option and return a list.
    '''
    result = []
    line = get_option(option)
    if line:
        csv = line.split('=')[1].replace(' ', '').replace('"', '')
        result = csv.split(',')
    return result