[Python] Does the @staticmethod decorator do anything?

I made these two classes:

class A:
@staticmethod
def f(x):
print("x is", x)

class B:
def f(x):
print("x is", x)


And used them like this:

>>> A.f(1)
x is 1
>>> B.f(1)
x is 1


It looks like f became a static method on B even without the decorator. Why would I need the decorator?

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