/// <summary>
/// Default constructor. This constructor is used by Lambda to construct the instance. When invoked in a Lambda environment
/// the AWS credentials will come from the IAM role associated with the function and the AWS region will be set to the
/// region the Lambda function is executed in.
/// </summary>
public S3Notifier() : this(new AmazonS3Client(), AzureBusSender.CreateFromEnv())
{
}
