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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 format_raw_script(raw_script):
 """Creates single script from a list of script parts. :type raw_script: [basestring] :rtype: basestring """

    if six.PY2:
        script = ' '.join(arg.decode('utf-8') for arg in raw_script)
    else:
        script = ' '.join(raw_script)

    return script.strip()