Adding lib changes

lib/kubectl-util.js

@@ -69,3 +69,12 @@ function downloadKubectl(version) {
     });
 }
 exports.downloadKubectl = downloadKubectl;
+function getTrafficSplitAPIVersion(kubectl) {
+    const result = kubectl.executeCommand('api-versions');
+    const trafficSplitAPIVersion = result.stdout.split('\n').find(version => version.startsWith('split.smi-spec.io'));
+    if (trafficSplitAPIVersion == null || typeof trafficSplitAPIVersion == 'undefined') {
+        throw new Error('UnableToCreateTrafficSplitManifestFile');
+    }
+    return trafficSplitAPIVersion;
+}
+exports.getTrafficSplitAPIVersion = getTrafficSplitAPIVersion;