Method get_function_hook

mypy/plugin.py:625–639

Adjust the return type of a function call. This method is called after type checking a call. Plugin may adjust the return type inferred by mypy, and/or emit some error messages. Note, this hook is also called for class instantiation calls, so that in this example:

(self, fullname: str)

        return None

    def get_function_hook(self, fullname: str) -> Callable[[FunctionContext], Type] | None:
        """Adjust the return type of a function call.

        This method is called after type checking a call. Plugin may adjust the return
        type inferred by mypy, and/or emit some error messages. Note, this hook is also
        called for class instantiation calls, so that in this example:

            from lib import Class, do_stuff

            do_stuff(42)
            Class()

        This method will be called with 'lib.do_stuff' and then with 'lib.Class'.
        """
        return None

    def get_method_signature_hook(
        self, fullname: str