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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_to_package_numpy(self, root, ndarray, node_path, target, source_path, transform, custom_meta):
 """ Save a Numpy array to the store. """

        filehash = self.save_numpy(ndarray)
        metahash = self.save_metadata(custom_meta)
        self._add_to_package_contents(root, node_path, [filehash], target, source_path, transform, metahash)