AWS SDK for .NET Documentation
InstanceId Property
AmazonAmazon.AutoScaling.ModelInstanceInstanceId Did this page help you?   Yes   No    Tell us about it...
Specifies the ID of the Amazon EC2 instance.

Constraints:

Length
1 - 16
Pattern
[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Declaration Syntax
C#
public string InstanceId { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)