e.g signal_dict = {signal_path:signal_receiver_path_list, ....}
        :return:

def enable_signals(self):
        '''
        e.g signal_dict = {signal_path:signal_receiver_path_list, ....}
        :return:
        '''
        signal_dict = self.settings[self.signal_key] or {}
        for i in signal_dict.keys():
            sig_module, signal_class = self.import_class_from_path(i)
            for j in signal_dict[i]:
                recv_module, recv_coro = self.import_class_from_path(j)
                signal_class.register(recv_coro)