def get_master_blinding_key(self, only_if_silent=False):
        """
        RPC call to fetch the master (SLIP-077) blinding key for the hw signer.
        May block temporarily to request the user's permission to export.  Passing 'only_if_silent'
        causes the call to return the 'denied' error if it would normally ask the user.
        NOTE: the master blinding key of any registered multisig wallets can be obtained from
        the result of `get_registered_multisigs()`.

        Parameters
        ----------
        only_if_silent : boolean, optional
            If True Jade will return the denied error if it would normally ask the user's permission
            to export the master blinding key.  Passing False (or letting default) may block while
            asking the user to confirm the export on Jade.

        Returns
        -------
        32-bytes
            SLIP-077 master blinding key
        """
        params = {'only_if_silent': only_if_silent}
        return self._jadeRpc('get_master_blinding_key', params)

        RPC call to fetch the master (SLIP-077) blinding key for the hw signer.
        May block temporarily to request the user's permission to export.  Passing 'only_if_silent'
        causes the call to return the 'denied' error if it would normally ask the user.
        NOTE: the master blinding key of any registered multisig wallets can be obtained from
        the result of `get_registered_multisigs()`.

        Parameters
        ----------
        only_if_silent : boolean, optional
            If True Jade will return the denied error if it would normally ask the user's permission
            to export the master blinding key.  Passing False (or letting default) may block while
            asking the user to confirm the export on Jade.

        Returns
        -------
        32-bytes
            SLIP-077 master blinding key
        
electrum/plugins/jade/jadepy/jade.py