Function useChat

Returns {
    messages: Message[];
    isTyping: boolean;
    sendMessage: (
        text: string,
        providerType: ProviderType,
        apiKey: null | string,
        options?: { baseUrl?: string; modelName?: string },
    ) => Promise<void>;
    handlePageContext: (content: string, isSelection?: boolean) => void;
    generatePromptFromAction: (action: string) => string;
    lastPageContext: string;
    addMessage: (role: Role, content: string, actions?: any[]) => Message;
    updateLastMessage: (content: string) => void;
    setIsTyping: Dispatch<SetStateAction<boolean>>;
}