PEP 677: Callable Type Syntax

Documentation

(A clear and concise description of the issue.)
In one of your examples there seems to me to be a small oversight:
from typing import Any, Callable, Concatenate, ParamSpec, TypeVar

R = TypeVar("R")
P = ParamSpec("P")

def with_retries(
    f: Callable[P, R]
) -> Callable[Concatenate[bool, P] R]:
    def wrapper(retry_once: bool, *args: P.args, **kwargs: P.kwargs) -> R:
        ...
    return wrapper

...
where -> Callable[Concatenate[bool, P] R]:
do: -> Callable[Concatenate[bool, P], R]:

Thanks very much

Open the PEP 677 documentation and find the with_retries example containing Callable[Concatenate[bool, P] R]. Compare the reported annotation with the surrounding example and correct the documented typo. Done means the example uses the valid form and the PEP renders consistently.