def METHOD_NAME(
    topic, protocol, endpoint, region=None, key=None, keyid=None, profile=None
):
    """
    Subscribe to a Topic.
    CLI example to delete a topic::
        salt myminion boto_sns.subscribe mytopic https https://www.example.com/sns-endpoint region=us-east-1
    """
    conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
    conn.METHOD_NAME(get_arn(topic, region, key, keyid, profile), protocol, endpoint)
    log.info("Subscribe %s %s to %s topic", protocol, endpoint, topic)
    try:
        del __context__[_subscriptions_cache_key(topic)]
    except KeyError:
        pass
    return True