如何扩展client.command的功能？

class Client:
    def command(self, cmd, *args):
        # 原有的command逻辑
        pass

    def new_command(self, *args):
        # 新增的命令逻辑
        self.command('new_command', *args)

def extend_command(func):
    def wrapper(self, *args, **kwargs):
        # 在调用原有命令前后的额外逻辑
        print("Before command execution")
        result = func(self, *args, **kwargs)
        print("After command execution")
        return result
    return wrapper

class Client:
    @extend_command
    def command(self, cmd, *args):
        # 原有的command逻辑
        pass

class PluginManager:
    def __init__(self):
        self.plugins = []

    def register(self, plugin):
        self.plugins.append(plugin)

    def execute_plugins(self, cmd, *args):
        for plugin in self.plugins:
            plugin.execute(cmd, *args)

class CommandPlugin:
    def execute(self, cmd, *args):
        # 插件的执行逻辑
        pass