lib/plugins/aws/package/compile/events/sns/index.js/AwsCompileSNSEvents/invalidPropertyErrorMessage
class AwsCompileSNSEvents:  invalidPropertyErrorMessage(functionName, property) {
    return [
      `Missing or invalid ${property} property for sns event`,
      ` in function "${functionName}"`,
      ' The correct syntax is: sns: topic-name-or-arn',
      ' OR an object with ',
      ' arn and topicName OR',
      ' topicName and displayName.',
      ' Please check the docs for more info.',
    ].join('');
  }