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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 repeater(self, value):
 """ Define the repeater of the current chain part. :param value: :type value: :return: :rtype: """

        try:
            value = int(value)
            self.repeater_start = value
            self.repeater_end = value
            return self
        except ValueError:
            pass
        if value == '+':
            self.repeater_start = 1
            self.repeater_end = None
        if value == '*':
            self.repeater_start = 0
            self.repeater_end = None
        elif value == '?':
            self.repeater_start = 0
            self.repeater_end = 1
        else:
            match = re.match(r'\{\s*(\d*)\s*,?\s*(\d*)\s*\}', value)
            if match:
                start = match.group(1)
                end = match.group(2)
                if start or end:
                    self.repeater_start = int(start) if start else 0
                    self.repeater_end = int(end) if end else None
        return self