Product : Amazon, AWS Snowball Edge/Current, all
Feature : Resize existing VM, Compute, Infrastructure Services
Content Owner:  John Gallucci
Summary
Typically resize an instance using CLI modify-instance-attribute on instanceType attribute but Snowball Edge only allows you to modify userdata
Details
https://docs.aws.amazon.com/snowball/latest/developer-guide/using-ec2-endpoint.html#cli-support-ec2-edge