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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 from_stub(cls, data, udas=None):
 """ Create a Task from an already deserialized dict. """


        udas = udas or {}
        fields = cls.FIELDS.copy()
        fields.update(udas)

        processed = {}
        for k, v in six.iteritems(data):
            processed[k] = cls._serialize(k, v, fields)

        return cls(processed, udas)