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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(self, item):
 """ Adds the specified item to the end of this list. :param item: (object), the specified item to be appended to this list. :return: (bool), ``true`` if item is added, ``false`` otherwise. """

        check_not_none(item, "Value can't be None")
        element_data = self._to_data(item)
        return self._encode_invoke(list_add_codec, value=element_data)