How to use the bigflow.core.entity function in bigflow

def _generate_resource_message(self):
        folder = entity.ENTITY_FOLDER
        if os.path.exists(folder):
            for file_name in os.listdir(folder):
                src_file = os.path.join(folder, file_name)
                target_file = os.path.join(entity.FLUME_WORKER_ENTITY_FOLDER, file_name)
                self.add_file(src_file, target_file)

        def _sorted_hooks(hooks_dict):
            result = []
            for name in sorted(hooks_dict.keys()):
                result.append(hooks_dict[name])
            return result

        import copy
        resource = copy.deepcopy(self._resource)
        from bigflow.core.serde import cloudpickle
        resource.add_file_from_bytes(
                cloudpickle.dumps(_sorted_hooks(self._init_hooks)),
                ".init_hooks")
        resource.add_file_from_bytes(
                cloudpickle.dumps(_sorted_hooks(self._fini_hooks)),

def _generate_resource_message(self):
        folder = entity.ENTITY_FOLDER
        if os.path.exists(folder):
            for file_name in os.listdir(folder):
                src_file = os.path.join(folder, file_name)
                target_file = os.path.join(entity.FLUME_WORKER_ENTITY_FOLDER, file_name)
                self.add_file(src_file, target_file)

        def _sorted_hooks(hooks_dict):
            result = []
            for name in sorted(hooks_dict.keys()):
                result.append(hooks_dict[name])
            return result

        import copy
        resource = copy.deepcopy(self._resource)
        from bigflow.core.serde import cloudpickle
        resource.add_file_from_bytes(

def __init__(self, **options):
        self._hadoop_client_instance = None
        self._id = str(uuid.uuid4())
        self._plan = logical_plan.LogicalPlan()
        self._plan.set_environment(entity.PythonEnvironment())
        self._resource = python_resource.Resource()
        self._type_str = "RawPipeline"

        self.estimate_concurrency = False
        self._job_config = None

        # todo(yexianjin): determine to use list or set
        self._local_temp_files = list()
        self._remote_temp_files = list()
        self._cache_node_ids = list()
        self._uri_to_write = list()

        # pipeline before and after run hooks
        self._before_run_hooks = dict()
        self._after_run_hooks = dict()