チャットの完了を伴う関数呼び出し

C# では、プラグインは次のようになります。

public class OrderPizzaPlugin(
    IPizzaService pizzaService,
    IUserContext userContext,
    IPaymentService paymentService)
{
    [KernelFunction("get_pizza_menu")]
    public async Task<Menu> GetPizzaMenuAsync()
    {
        return await pizzaService.GetMenu();
    }

    [KernelFunction("add_pizza_to_cart")]
    [Description("Add a pizza to the user's cart; returns the new item and updated cart")]
    public async Task<CartDelta> AddPizzaToCart(
        PizzaSize size,
        List<PizzaToppings> toppings,
        int quantity = 1,
        string specialInstructions = ""
    )
    {
        Guid cartId = userContext.GetCartId();
        return await pizzaService.AddPizzaToCart(
            cartId: cartId,
            size: size,
            toppings: toppings,
            quantity: quantity,
            specialInstructions: specialInstructions);
    }

    [KernelFunction("remove_pizza_from_cart")]
    public async Task<RemovePizzaResponse> RemovePizzaFromCart(int pizzaId)
    {
        Guid cartId = userContext.GetCartId();
        return await pizzaService.RemovePizzaFromCart(cartId, pizzaId);
    }

    [KernelFunction("get_pizza_from_cart")]
    [Description("Returns the specific details of a pizza in the user's cart; use this instead of relying on previous messages since the cart may have changed since then.")]
    public async Task<Pizza> GetPizzaFromCart(int pizzaId)
    {
        Guid cartId = await userContext.GetCartIdAsync();
        return await pizzaService.GetPizzaFromCart(cartId, pizzaId);
    }

    [KernelFunction("get_cart")]
    [Description("Returns the user's current cart, including the total price and items in the cart.")]
    public async Task<Cart> GetCart()
    {
        Guid cartId = await userContext.GetCartIdAsync();
        return await pizzaService.GetCart(cartId);
    }

    [KernelFunction("checkout")]
    [Description("Checkouts the user's cart; this function will retrieve the payment from the user and complete the order.")]
    public async Task<CheckoutResponse> Checkout()
    {
        Guid cartId = await userContext.GetCartIdAsync();
        Guid paymentId = await paymentService.RequestPaymentFromUserAsync(cartId);

        return await pizzaService.Checkout(cartId, paymentId);
    }
}

その後、次のようにカーネルにこのプラグインを追加します。

IKernelBuilder kernelBuilder = new KernelBuilder();
kernelBuilder..AddAzureOpenAIChatCompletion(
    deploymentName: "NAME_OF_YOUR_DEPLOYMENT",
    apiKey: "YOUR_API_KEY",
    endpoint: "YOUR_AZURE_ENDPOINT"
);
kernelBuilder.Plugins.AddFromType<OrderPizzaPlugin>("OrderPizza");
Kernel kernel = kernelBuilder.Build();

Python では、プラグインは次のようになります。

from semantic_kernel.functions import kernel_function

class OrderPizzaPlugin:
    def __init__(self, pizza_service, user_context, payment_service):
        self.pizza_service = pizza_service
        self.user_context = user_context
        self.payment_service = payment_service

    @kernel_function(name="get_pizza_menu")
    async def get_pizza_menu(self):
        return await self.pizza_service.get_menu()

    @kernel_function(
        name="add_pizza_to_cart",
        description="Add a pizza to the user's cart; returns the new item and updated cart"
    )
    async def add_pizza_to_cart(self, size: PizzaSize, toppings: List[PizzaToppings], quantity: int = 1, special_instructions: str = ""):
        cart_id = await self.user_context.get_cart_id()
        return await self.pizza_service.add_pizza_to_cart(cart_id, size, toppings, quantity, special_instructions)

    @kernel_function(
        name="remove_pizza_from_cart",
        description="Remove a pizza from the user's cart; returns the updated cart"
    )
    async def remove_pizza_from_cart(self, pizza_id: int):
        cart_id = await self.user_context.get_cart_id()
        return await self.pizza_service.remove_pizza_from_cart(cart_id, pizza_id)

    @kernel_function(
        name="get_pizza_from_cart",
        description="Returns the specific details of a pizza in the user's cart; use this instead of relying on previous messages since the cart may have changed since then."
    )
    async def get_pizza_from_cart(self, pizza_id: int):
        cart_id = await self.user_context.get_cart_id()
        return await self.pizza_service.get_pizza_from_cart(cart_id, pizza_id)

    @kernel_function(
        name="get_cart",
        description="Returns the user's current cart, including the total price and items in the cart."
    )
    async def get_cart(self):
        cart_id = await self.user_context.get_cart_id()
        return await self.pizza_service.get_cart(cart_id)

    @kernel_function(
        name="checkout",
        description="Checkouts the user's cart; this function will retrieve the payment from the user and complete the order."
    )
    async def checkout(self):
        cart_id = await self.user_context.get_cart_id()
        payment_id = await self.payment_service.request_payment_from_user(cart_id)
        return await self.pizza_service.checkout(cart_id, payment_id)

その後、次のようにカーネルにこのプラグインを追加します。

from semantic_kernel import Kernel
from semantic_kernel.connectors.ai.open_ai import AzureChatCompletion
from semantic_kernel.connectors.ai.chat_completion_client_base import ChatCompletionClientBase

kernel = Kernel()
kernel.add_service(AzureChatCompletion(model_id, endpoint, api_key))

# Create the services needed for the plugin: pizza_service, user_context, and payment_service
# ...

# Add the plugin to the kernel
kernel.add_plugin(OrderPizzaPlugin(pizza_service, user_context, payment_service), plugin_name="OrderPizza")

ChatHistory chatHistory = [];
chatHistory.AddUserMessage("I'd like to order a pizza!");

chat_history = ChatHistory()
chat_history.add_user_message("I'd like to order a pizza!")

IChatCompletionService chatCompletion = kernel.GetRequiredService<IChatCompletionService>();

OpenAIPromptExecutionSettings openAIPromptExecutionSettings = new() 
{
    ToolCallBehavior = ToolCallBehavior.AutoInvokeKernelFunctions
};

ChatResponse response = await chatCompletion.GetChatMessageContentAsync(
    chatHistory,
    executionSettings: openAIPromptExecutionSettings,
    kernel: kernel)

chat_completion = kernel.get_service(type=ChatCompletionClientBase)

execution_settings = AzureChatPromptExecutionSettings(tool_choice="auto")
execution_settings.function_call_behavior = FunctionCallBehavior.EnableFunctions(auto_invoke=True, filters={})

response = (await chat_completion.get_chat_message_contents(
      chat_history=history,
      settings=execution_settings,
      kernel=kernel,
      arguments=KernelArguments(),
  ))[0]

Console.WriteLine(response);
chatHistory.AddAssistantMessage(response);

// "Before I can add a pizza to your cart, I need to
// know the size and toppings. What size pizza would
// you like? Small, medium, or large?"

print(response)
chat_history.add_assistant_message(response)

# "Before I can add a pizza to your cart, I need to
# know the size and toppings. What size pizza would
# you like? Small, medium, or large?"

chatHistory.AddUserMessage("I'd like a medium pizza with cheese and pepperoni, please.");

response = await chatCompletion.GetChatMessageContentAsync(
    chatHistory,
    kernel: kernel)

chat_history.add_user_message("I'd like a medium pizza with cheese and pepperoni, please.")

response = (await chat_completion.get_chat_message_contents(
    chat_history=history,
    settings=execution_settings,
    kernel=kernel,
    arguments=KernelArguments(),
))[0]

chatHistory.Add(
    new() {
        Role = AuthorRole.Assistant,
        Items = [
            new FunctionCallContent(
                functionName: "add_pizza_to_cart",
                pluginName: "OrderPizza",
                id: "call_abc123",
                arguments: new () { {"size", "Medium"}, {"toppings", ["Cheese", "Pepperoni"]} }
            )
        ]
    }
);

from semantic_kernel.contents import ChatMessageContent, FunctionCallContent
from semantic_kernel.contents.utils.author_role import AuthorRole

chat_history.add_message(
    ChatMessageContent(
        role=AuthorRole.ASSISTANT,
        items=[
            FunctionCallContent(
                name="OrderPizza-add_pizza_to_cart",
                id="call_abc123",
                arguments=str({"size": "Medium", "toppings": ["Cheese", "Pepperoni"]})
            )
        ]
    )
)

chatHistory.Add(
    new() {
        Role = AuthorRole.Tool,
        Items = [
            new FunctionResultContent(
                functionName: "add_pizza_to_cart",
                pluginName: "OrderPizza",
                id: "0001",
                result: "{ \"new_items\": [ { \"id\": 1, \"size\": \"Medium\", \"toppings\": [\"Cheese\",\"Pepperoni\"] } ] }"
            )
        ]
    }
);

from semantic_kernel.contents import ChatMessageContent, FunctionResultContent
from semantic_kernel.contents.utils.author_role import AuthorRole

chat_history.add_message(
    ChatMessageContent(
        role=AuthorRole.TOOL,
        items=[
            FunctionResultContent(
                name="OrderPizza-add_pizza_to_cart",
                id="0001",
                result="{ \"new_items\": [ { \"id\": 1, \"size\": \"Medium\", \"toppings\": [\"Cheese\",\"Pepperoni\"] } ] }"
            )
        ]
    )
)