Decorator to enforce a given set of arguments or variants of arguments are passed to the decorated function.
Useful for enforcing runtime validation of overloaded functions.
Example usage:
@overload
def foo(*, a: str) -> str: ...
@overload
def foo(*, b: bool) -> str: ...
# This enforces the same constraints that a static type checker would
# i.e. that either a or b must be passed to the function
@required_args(["a"], ["b"])
def foo(*, a: str | None = None, b: bool | None = None) -> str: ...