SetupGeminiClient initializes and configures a Gemini client for text generation.

JSONDataFile represents the file path to the JSON data file.

Exmaple of json response from generate summary [{"ticket_id":1001,"date_created":"2024-04-15T10:35:00Z","status":"closed","priority":"high","channel":"email","customer_name":"AliceJohnson","company":"AcmeCorp","environment":"production","k8s_version":"1.23.5","cloud_provider":"AWS","summary":"PodCrashLoopBackOffError","description":"MultiplepodsinourproductionclusterarestuckinCrashLoopBackOff.We'reseeingerrorsrelatedtoimagePullBackOffandOOMKilled.","resolution":"Updateddeploymenttousecorrectimagetag,adjustedresourcelimitsforpods,monitoredforstability.","tags":["pod","crashloopbackoff","imagepullbackoff","oomkilled","deployment"]}] */ JSON response struct from generate summary.