def make_default_options_response(self) -> Response:
        """This method is called to create the default ``OPTIONS`` response.
        This can be changed through subclassing to change the default
        behavior of ``OPTIONS`` responses.

        .. versionadded:: 0.7
        """
        adapter = request_ctx.url_adapter
        methods = adapter.allowed_methods()  # type: ignore[union-attr]
        rv = self.response_class()
        rv.allow.update(methods)
        return rv
This method is called to create the default ``OPTIONS`` response.
        This can be changed through subclassing to change the default
        behavior of ``OPTIONS`` responses.

        .. versionadded:: 0.7
        
src/flask/app.py