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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 provision(self, bug: Bug, *, plugins: Optional[List[Tool]] = None ) -> Container: """ Provisions a container for a given bug. """

        if plugins is None:
            plugins = []

        logger.info("provisioning container for bug: %s", bug.name)
        endpoint = 'bugs/{}/provision'.format(bug.name)
        payload = {
            'plugins': [p.to_dict() for p in plugins]
        }  # type: Dict[str, Any]
        r = self.__api.post(endpoint, json=payload)

        if r.status_code == 200:
            container = Container.from_dict(r.json())
            logger.info("provisioned container (id: %s) for bug: %s",
                               container.uid,
                               bug.name)
            return container

        if r.status_code == 404:
            raise KeyError("no bug registered with given name: {}".format(bug.name))

        self.__api.handle_erroneous_response(r)