In Python you can write something like this:  a = (1, 2, 3) b = {'foo': 'bar'} my_function(*a, **b)   Is there a specific term for what happens in the last line with a and b and, if yes, what is it? It's not "destructuring" I suppose. And "variable expansion" sounds wrong too.
In the following method definitions, what does the * and ** do for param2?  def foo(param1, *param2): def bar(param1, **param2):
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