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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def produce(self, *args, **kwargs):
 """Produce a new set of plugins, treating the current set as plugin factories. """


        new_plugins = []
        for p in self._plugins:
            r = p(*args, **kwargs)
            new_plugins.append(r)
        return PluginManager(new_plugins)