Hi! I have a question regarding the typing of a function with keyword-only arguments:
I have the following function:

def send_command(name: str, *, timeout: Optional[float] = None, **params: Any):
    print(name, params, timeout)

Which is called like this:

# Valid Calls
kwargs = {"p1": "abc", "timeout": 1.0}
send_command("Test", **kwargs)
send_command("Test", a=1, b=2, timeout=10)
# Invalid Calls
send_command("Test", timeout="not a number")  # Wrong type for timeout

With the typehints as shown above, mypy fails on the first call with Argument 2 to "send_command" has incompatible type "**Dict[str, object]"; expected "Optional[float]" [arg-type]

I tried to fix this by adding the following overloads:

@overload
def send_command(name: str, *, timeout: Optional[float], **params: Any):
    ...

@overload
def send_command(name: str, **params: Any):
    ...

However, with those overloads, mypy no longer detects the wrong type for the timeout parameter (third call from above). What would be the correct typehint for this function?