public String getRuntimeVersion() {
        return this.runtimeVersion;
    }
<p>
Specifies the runtime version to use for the canary. For a list of valid runtime versions and more information
about runtime versions, see <a href=
"https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Canaries_Library.html">
Canary Runtime Versions</a>.
</p>

@return Specifies the runtime version to use for the canary. For a list of valid runtime versions and more
        information about runtime versions, see <a href=
        "https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Synthetics_Canaries_Library.html"
        > Canary Runtime Versions</a>.
aws-java-sdk-synthetics/src/main/java/com/amazonaws/services/synthetics/model/CreateCanaryRequest.java