import { MessageModel, SendImageMessageProps, SendTextMessageProps, StreamMessage } from '@openassistant/core';
import React, { ReactNode } from 'react';
export type SendTextMessageHandlerProps = {
    newMessage: string;
    messages: MessageModel[];
    setMessages: (value: React.SetStateAction<MessageModel[]>) => void;
    setTypingIndicator: (value: React.SetStateAction<boolean>) => void;
    sendTextMessage: (props: SendTextMessageProps) => Promise<void>;
    onMessagesUpdated?: (messages: MessageModel[]) => void;
    onToolFinished?: (toolCallId: string, additionalData: unknown) => void;
};
export declare function sendTextMessageHandler({ newMessage, messages, setMessages, setTypingIndicator, sendTextMessage, onMessagesUpdated, onToolFinished, }: SendTextMessageHandlerProps): Promise<void>;
export type SendImageMessageHandlerProps = {
    newMessage: string;
    imageBase64String: string;
    messages: MessageModel[];
    setMessages: (value: React.SetStateAction<MessageModel[]>) => void;
    setTypingIndicator: (value: React.SetStateAction<boolean>) => void;
    sendImageMessage: (props: SendImageMessageProps) => Promise<void>;
    onMessagesUpdated?: (messages: MessageModel[]) => void;
};
export declare function sendImageMessageHandler({ newMessage, imageBase64String, messages, setMessages, setTypingIndicator, sendImageMessage, onMessagesUpdated, }: SendImageMessageHandlerProps): Promise<void>;
export declare function createWelcomeMessage(welcomeMessage: string | ReactNode): StreamMessage;