public String getImageId() {
        return this.imageId;
    }
<p>
The ID of the AMI. An AMI ID is required to launch an instance and must be specified here or in a launch
template.
</p>

@return The ID of the AMI. An AMI ID is required to launch an instance and must be specified here or in a launch
        template.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/RunInstancesRequest.java