def get_blinding_key(self, script, multisig_name=None):
        """
        RPC call to fetch the public blinding key for the hw signer.

        Parameters
        ----------
        script : bytes
            The script for which the public blinding key is required.

        multisig_name : str, optional
            The name of any registered multisig wallet for which to fetch the blinding key.
            Defaults to None

        Returns
        -------
        33-bytes
            Public blinding key for the passed script.
        """
        params = {'script': script, 'multisig_name': multisig_name}
        return self._jadeRpc('get_blinding_key', params)

        RPC call to fetch the public blinding key for the hw signer.

        Parameters
        ----------
        script : bytes
            The script for which the public blinding key is required.

        multisig_name : str, optional
            The name of any registered multisig wallet for which to fetch the blinding key.
            Defaults to None

        Returns
        -------
        33-bytes
            Public blinding key for the passed script.
        
electrum/plugins/jade/jadepy/jade.py