public String getKmsKeyId() {
        return this.kmsKeyId;
    }
Specifies the KMS key to use for all features that use key encryption. Specify the ARN of a KMS key that you have
created. Or leave blank to use the key that MediaLive creates and manages for you.

@return Specifies the KMS key to use for all features that use key encryption. Specify the ARN of a KMS key that
        you have created. Or leave blank to use the key that MediaLive creates and manages for you.
aws-java-sdk-medialive/src/main/java/com/amazonaws/services/medialive/model/AccountConfiguration.java