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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 all(self, data={}, **kwargs):
 """" Fetch all Transfer entities Returns: Dictionary of Transfer data """

        if 'payment_id' in data:
            url = "/payments/{}/transfers".format(data['payment_id'])

            del data['payment_id']
            return self.get_url(url, data, **kwargs)

        return super(Transfer, self).all(data, **kwargs)