adding samples, test, lints

Author: Guiners

genai/tuning/tuning-job-create.js

@@ -57,10 +57,12 @@ async function generateContent(
   console.log(tuningJob.tunedModel.model);
   console.log(tuningJob.tunedModel.endpoint);
   console.log(tuningJob.experiment);
+
   // Example response:
   //  projects/123456789012/locations/us-central1/models/1234567890@1
   //  projects/123456789012/locations/us-central1/endpoints/123456789012345
   //  projects/123456789012/locations/us-central1/metadataStores/default/contexts/tuning-experiment-2025010112345678
+
   return tuningJob.name;
 }
 // [END googlegenaisdk_tuning_job_create]