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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_ports(self, ports, id_or_uri):
 """ Updates the switch ports. Only the ports under the management of OneView and those that are unlinked are supported for update. Note: This method is available for API version 300 or later. Args: ports: List of Switch Ports. id_or_uri: Can be either the switch id or the switch uri. Returns: dict: Switch """

        ports = merge_default_values(ports, {'type': 'port'})

        uri = self._client.build_uri(id_or_uri) + "/update-ports"
        return self._client.update(uri=uri, resource=ports)