func JsonEnumRaw()

in go/controlled_generation.go [189:237]
43 lines of code
4 McCabe index (conditional complexity)

func JsonEnumRaw() (*genai.GenerateContentResponse, error) {
	// [START json_enum_raw]
	ctx := context.Background()
	client, err := genai.NewClient(ctx, &genai.ClientConfig{
		APIKey:  os.Getenv("GEMINI_API_KEY"), 
		Backend: genai.BackendGeminiAPI,
	})
	if err != nil {
		log.Fatal(err)
	}

	config := &genai.GenerateContentConfig{
		ResponseMIMEType: "application/json",
		ResponseSchema: &genai.Schema{
			Type: genai.TypeString,
			Enum: []string{"Percussion", "String", "Woodwind", "Brass", "Keyboard"},
		},
	}

	file, err := client.Files.UploadFromPath(
		ctx, 
		filepath.Join(getMedia(), "organ.jpg"), 
		&genai.UploadFileConfig{
			MIMEType : "image/jpeg",
		},
	)
	if err != nil {
		log.Fatal(err)
	}
	parts := []*genai.Part{
		genai.NewPartFromText("What kind of instrument is this:"),
		genai.NewPartFromURI(file.URI, file.MIMEType),
	}
	contents := []*genai.Content{
		genai.NewContentFromParts(parts, genai.RoleUser),
	}

	response, err := client.Models.GenerateContent(ctx, "gemini-2.0-flash",
		contents,
		config,
	)
	if err != nil {
		log.Fatal(err)
	}

	printResponse(response)
	// [END json_enum_raw]
	return response, err
}