public String getModelKmsKeyId() {
        return this.modelKmsKeyId;
    }
<p>
ID for the KMS key that Amazon Comprehend uses to encrypt trained custom models. The ModelKmsKeyId can be either
of the following formats:
</p>
<ul>
<li>
<p>
KMS Key ID: <code>"1234abcd-12ab-34cd-56ef-1234567890ab"</code>
</p>
</li>
<li>
<p>
Amazon Resource Name (ARN) of a KMS Key:
<code>"arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"</code>
</p>
</li>
</ul>

@return ID for the KMS key that Amazon Comprehend uses to encrypt trained custom models. The ModelKmsKeyId can be
        either of the following formats:</p>
        <ul>
        <li>
        <p>
        KMS Key ID: <code>"1234abcd-12ab-34cd-56ef-1234567890ab"</code>
        </p>
        </li>
        <li>
        <p>
        Amazon Resource Name (ARN) of a KMS Key:
        <code>"arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"</code>
        </p>
        </li>
aws-java-sdk-comprehend/src/main/java/com/amazonaws/services/comprehend/model/CreateEntityRecognizerRequest.java