def del_cookie(
        self, name: str, *, domain: Optional[str] = None, path: str = "/"
    ) -> None:
        """Delete cookie.

        Creates new empty expired cookie.
        """
        # TODO: do we need domain/path here?
        self._cookies.pop(name, None)
        self.set_cookie(
            name,
            "",
            max_age=0,
            expires="Thu, 01 Jan 1970 00:00:00 GMT",
            domain=domain,
            path=path,
        )
Delete cookie.

        Creates new empty expired cookie.
        
lib/aiohttp/web_response.py