How to use the opentelemetry-sdk.src.opentelemetry.sdk.trace.__init__.Span.empty_attributes function in opentelemetry-sdk

def set_attribute(self, key: str, value: types.AttributeValue) -> None:
        with self._lock:
            if not self.is_recording_events():
                return
            has_ended = self.end_time is not None
            if not has_ended:
                if self.attributes is Span.empty_attributes:
                    self.attributes = BoundedDict(MAX_NUM_ATTRIBUTES)
        if has_ended:
            logger.warning("Setting attribute on ended span.")
            return
        self.attributes[key] = value

self.name = name
        self.context = context
        self.parent = parent
        self.sampler = sampler
        self.trace_config = trace_config
        self.resource = resource
        self.kind = kind
        self._set_status_on_exception = set_status_on_exception

        self.span_processor = span_processor
        self.status = None
        self._lock = threading.Lock()

        if attributes is None:
            self.attributes = Span.empty_attributes
        else:
            self.attributes = BoundedDict.from_map(
                MAX_NUM_ATTRIBUTES, attributes
            )

        if events is None:
            self.events = Span.empty_events
        else:
            self.events = BoundedList.from_seq(MAX_NUM_EVENTS, events)

        if links is None:
            self.links = Span.empty_links
        else:
            self.links = BoundedList.from_seq(MAX_NUM_LINKS, links)

        self.end_time = None  # type: Optional[int]