public String getPerformanceInsightsKmsKeyId() {
        return this.performanceInsightsKmsKeyId;
    }
<p>
The identifier of the KMS key used to encrypt the Performance Insights data.
</p>

@return The identifier of the KMS key used to encrypt the Performance Insights data.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsRdsDbInstanceDetails.java