classDiagram

    Agent
    Agent <|-- KernelAgent
    KernelAgent <|-- ChatHistoryKernelAgent
    IChatHistoryHandler <|-- ChatHistoryKernelAgent
    ChatHistoryKernelAgent --> ChatHistoryChannel
    AgentChannel
    AgentChannel <|-- ChatHistoryChannel
    
    ChatHistoryKernelAgent <|-- ChatCompletionAgent
    class ChatCompletionAgent {
        <<Final>>
        +PromptExecutionSettings? ExecutionSettings
        +IAsyncEnumerable~ChatMessageContent~ InvokeAsync(IReadOnlyList~ChatMessageContent~ history, ILogger logger)
    }