Retrieves the plugin based on the inputted name.
        
        :param      name | <str>
        
        :return     <Plugin>

def plugin(cls, name):
        """
        Retrieves the plugin based on the inputted name.
        
        :param      name | <str>
        
        :return     <Plugin>
        """
        cls.loadPlugins()
        plugs = getattr(cls, '_%s__plugins' % cls.__name__, {})
        return plugs.get(nstr(name))