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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 get_regex_strings(self, regular_expressions):
 """ Return all target strings matched the regex :param regular_expressions: the python regex :type regular_expressions: string :rtype: a list of strings matching the regex expression """

        str_list = []
        if regular_expressions.count is None:
            return None
        for i in self.get_strings():
            if re.match(regular_expressions, i):
                str_list.append(i)
        return str_list