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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 add_success(self, group=None, type_='', field='', description=''):
 """parse and append a success data param"""

        group = group or '(200)'
        group = int(group.lower()[1:-1])
        self.retcode = self.retcode or group
        if group != self.retcode:
            raise ValueError('Two or more retcodes!')
        type_ = type_ or '{String}'
        p = Param(type_, field, description)
        self.params['responce'][p.field] = p