code: def topic_exists(name, region=None, key=None, keyid=None, profile=None):
      '''
      Check to see if an SNS topic exists.
  
      CLI example::
  
          salt myminion boto3_sns.topic_exists mytopic region=us-east-1
      '''
      topics = list_topics(region=region, key=key, keyid=keyid, profile=profile)
      return name in list(topics.values() + topics.keys()f topic_exists(name, region=None, key=None, keyid=None, profile=None):
      '''
      Check to see if an SNS topic exists.
  
      CLI example::
  
          salt myminion boto3_sns.topic_exists mytopic region=us-east-1
      '''
      topics = list_topics(region=region, key=key, keyid=keyid, profile=profile)
      return name in list(topics.values() + topics.keys())
docs: Check to see if an SNS topic exists.
  
      CLI example::
  
          salt myminion boto3_sns.topic_exists mytopic region=us-east-1