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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)