'Register a manager with Fuzzbunch.  Initially these are PluginManager objects'

def register_manager(self, type, typeConstructor):

    if (type in self.pluginmanagers):
        raise exception.CmdErr, ("'%s'    already    registered" % type)
    self.pluginmanagers[type] = typeConstructor(type, self)
    return self.pluginmanagers[type]
