public async Task GenerateContentWithResponseSchema4()

in aiplatform/api/AIPlatform.Samples/ControlledGeneration.cs [269:357]
82 lines of code
1 McCabe index (conditional complexity)

    public async Task<string> GenerateContentWithResponseSchema4(
        string projectId = "your-project-id",
        string location = "us-central1",
        string publisher = "google",
        string model = "gemini-2.0-flash-001")
    {

        var predictionServiceClient = new PredictionServiceClientBuilder
        {
            Endpoint = $"{location}-aiplatform.googleapis.com"
        }.Build();

        var responseSchema = new OpenApiSchema
        {
            Type = Type.Array,
            Items = new()
            {
                Type = Type.Object,
                Properties =
                {
                    ["to_discard"] = new() { Type = Type.Integer },
                    ["subcategory"] = new() { Type = Type.String },
                    ["safe_handling"] = new() { Type = Type.Integer },
                    ["item_category"] = new()
                    {
                        Type = Type.String,
                        Enum =
                        {
                            "clothing",
                            "winter apparel",
                            "specialized apparel",
                            "furniture",
                            "decor",
                            "tableware",
                            "cookware",
                            "toys"
                        }
                    },
                    ["for_resale"] = new() { Type = Type.Integer },
                    ["condition"] = new()
                    {
                        Type = Type.String,
                        Enum =
                        {
                            "new in package",
                            "like new",
                            "gently used",
                            "used",
                            "damaged",
                            "soiled"
                        }
                    }
                }
            }
        };

        string prompt = @"
            Item description:
            The item is a long winter coat that has many tears all around the seams and is falling apart.
            It has large questionable stains on it.";

        var generateContentRequest = new GenerateContentRequest
        {
            Model = $"projects/{projectId}/locations/{location}/publishers/{publisher}/models/{model}",
            Contents =
            {
                new Content
                {
                    Role = "USER",
                    Parts =
                    {
                        new Part { Text = prompt }
                    }
                }
            },
            GenerationConfig = new GenerationConfig
            {
                ResponseMimeType = "application/json",
                ResponseSchema = responseSchema
            },
        };

        GenerateContentResponse response = await predictionServiceClient.GenerateContentAsync(generateContentRequest);

        string responseText = response.Candidates[0].Content.Parts[0].Text;
        Console.WriteLine(responseText);

        return responseText;
    }