求Python大神，这个代码什么意思，看不懂，也运行不出来 为什么我的这段python代码运行不出来结果，也没报错，跪求...
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\u53ea\u662freturn\u554a
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call_foo(1, 2, 'hello', m=None, n=[])
则call_foo函数中args元组的内容为(1, 2, 'hello')，kwds字典的内容为{'m': None, 'n': []}。
foo(*args, **kwds)则表示调用foo函数并将元组args和字典kwds的内容解包作为参数传入。接上面的例子，相当于调用foo(1, 2, 'hello', m=None, n=[])。
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