Using the `function` argument of `itertools.accumulate()` gets error against the doc

Bug report

Bug description:

The doc of itertools.accumulate() says the 2nd parameter is function as shown below:

itertools.accumulate(iterable[, function, *, initial=None])

But using function argument gets the error against the doc as shown below:

from itertools import accumulate
from operator import mul
                                            # ↓↓↓↓↓↓↓↓
for x in accumulate(iterable=[1, 2, 3, 4, 5], function=mul):
    print(x)
# TypeError: 'function' is an invalid keyword argument for accumulate()

So, I used func argument, then it works as shown below:

from itertools import accumulate
from operator import mul
                                            # ↓↓↓↓
for x in accumulate(iterable=[1, 2, 3, 4, 5], func=mul):
    print(x)
# 1
# 2
# 6
# 24
# 120

CPython versions tested on:

3.13

Operating systems tested on:

Windows

Linked PRs

• gh-135283

Comece pela documentação de itertools.accumulate() vinculada na issue e compare sua assinatura com a palavra-chave aceita mostrada nos exemplos de Python. Confirme o nome documentado do parâmetro e atualize a documentação para que a assinatura corresponda ao uso real; verifique o PR vinculado gh-135283 antes de começar.