public String getRuntimeVersionArn() {
        return this.runtimeVersionArn;
    }
<p>
The ARN of the runtime the function is configured to use. If the runtime update mode is <b>Manual</b>, the ARN is
returned, otherwise <code>null</code> is returned.
</p>

@return The ARN of the runtime the function is configured to use. If the runtime update mode is <b>Manual</b>,
        the ARN is returned, otherwise <code>null</code> is returned.
aws-java-sdk-lambda/src/main/java/com/amazonaws/services/lambda/model/GetRuntimeManagementConfigResult.java