> +.. function:: int(number=0)

First argument is named "x".

>>> int(number=42)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'number' is an invalid keyword argument for this function
>>> int(x=42)
42

+              int(string, base=10)

Here can be not only string, but bytes or bytearray.

>>> int('42', 6)
26
>>> int(b'42', 6)
26
>>> int(bytearray(b'42'), 6)
26