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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 update(self, resource, id_or_uri):
 """ Updates a registered Device Manager. Args: resource (dict):
 Object to update. id_or_uri: Can be either the Device manager ID or URI. Returns: dict: The device manager resource. """

        return self._client.update(resource=resource, uri=id_or_uri)