How to use existing_tag_index method in localstack

Best Python code snippet using localstack_python

sns_listener.py

Source:sns_listener.py

...380    tags = [381        tag for idx, tag in enumerate(tags)382        if tag not in tags[:idx]383    ]384    def existing_tag_index(item):385        for idx, tag in enumerate(existing_tags):386            if item['Key'] == tag['Key']:387                return idx388        return None389    for item in tags:390        existing_index = existing_tag_index(item)391        if existing_index is None:392            existing_tags.append(item)393        else:394            existing_tags[existing_index] = item395    SNS_TAGS[topic_arn] = existing_tags396def do_untag_resource(topic_arn, tag_keys):397    SNS_TAGS[topic_arn] = [t for t in _get_tags(topic_arn) if t['Key'] not in tag_keys]398# ---------------399# HELPER METHODS400# ---------------401def get_subscription_by_arn(sub_arn):402    # TODO maintain separate map instead of traversing all items403    for key, subscriptions in SNS_SUBSCRIPTIONS.items():404        for sub in subscriptions:...

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