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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_field(self, name, data):
 """ Add a new field to the datamat. Parameters: name : string Name of the new field data : list Data for the new field, must be same length as all other fields. """

        if name in self._fields:
            raise ValueError
        if not len(data) == self._num_fix:
            raise ValueError
        self._fields.append(name)
        self.__dict__[name] = data