def get(self, signal=None, plugin=None):
        """
        Get one or more signals.

        :param signal: Name of the signal
        :type signal: str
        :param plugin: Plugin object, under which the signals where registered
        :type plugin: GwBasePattern
        """
        if plugin is not None:
            if signal is None:
                signals_list = {}
                for key in self.signals.keys():
                    if self.signals[key].plugin == plugin:
                        signals_list[key] = self.signals[key]
                return signals_list
            else:
                if signal in self.signals.keys():
                    if self.signals[signal].plugin == plugin:
                        return self.signals[signal]
                    else:
                        return None
                else:
                    return None
        else:
            if signal is None:
                return self.signals
            else:
                if signal in self.signals.keys():
                    return self.signals[signal]
                else:
                    return None
Get one or more signals.

        :param signal: Name of the signal
        :type signal: str
        :param plugin: Plugin object, under which the signals where registered
        :type plugin: GwBasePattern