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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 serialize(self, value, **kwargs):
 """Return a serialized value If no serializer is provided, it uses the serialize method of the prop corresponding to the value """

        kwargs.update({'include_class': kwargs.get('include_class', True)})
        if self.serializer is not None:
            return self.serializer(value, **kwargs)
        if value is None:
            return None
        for prop in self.props:
            try:
                prop.validate(None, value)
            except GENERIC_ERRORS:
                continue
            return prop.serialize(value, **kwargs)
        return self.to_json(value, **kwargs)