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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 strip_prefix(string, strip):
 """ Strips a prefix from a string, if the string starts with the prefix. :param string: String that should have its prefix removed :param strip: Prefix to be removed :return: string with the prefix removed if it has the prefix, or else it just returns the original string """

    import re
    strip_esc = re.escape(strip)
    if re.match(strip_esc, string):
        return string[len(strip):]
    else:
        return string