code: def exists(name, region=None, key=None, keyid=None, profile=None):
      '''
      Check to see if a stack exists.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_cfn.exists mystack region=us-east-1
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      try:
          # Returns an object if stack exists else an exception
          exists = conn.describe_stacks(name)
          log.debug('Stack %s exists.', name)
          return True
      except BotoServerError as e:
          log.debug('boto_cfn.exists raised an exception', exc_info=True)
          return Falsf exists(name, region=None, key=None, keyid=None, profile=None):
      '''
      Check to see if a stack exists.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_cfn.exists mystack region=us-east-1
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      try:
          # Returns an object if stack exists else an exception
          exists = conn.describe_stacks(name)
          log.debug('Stack %s exists.', name)
          return True
      except BotoServerError as e:
          log.debug('boto_cfn.exists raised an exception', exc_info=True)
          return False
docs: Check to see if a stack exists.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_cfn.exists mystack region=us-east-1