import { Ref, VNode } from 'vue';

/**
 * 消息角色 UI 配置 Composable
 * 用于定义消息气泡的外观、头像、操作按钮等 UI 配置
 */
export declare function useMessageRoles(options: {
    props: {
        roleAvatar: {
            user: VNode;
            assistant: VNode;
        };
    };
    messages: Ref<any[]>;
    messageState: any;
    inputMessage: Ref<string>;
    handleSendMessage: (inputValue: string, attachmentsContent?: any[]) => Promise<boolean>;
}): {
    welcomeIcon: VNode<import('vue').RendererNode, import('vue').RendererElement, {
        [key: string]: any;
    }>;
    roles: {
        assistant: {
            type: string;
            placement: string;
            avatar: VNode<import('vue').RendererNode, import('vue').RendererElement, {
                [key: string]: any;
            }>;
            maxWidth: string;
            customContentField: string;
            slots: {
                footer: ({ index }: {
                    index: number;
                }) => "" | VNode<import('vue').RendererNode, import('vue').RendererElement, {
                    [key: string]: any;
                }>;
            };
        };
        user: {
            placement: string;
            avatar: VNode<import('vue').RendererNode, import('vue').RendererElement, {
                [key: string]: any;
            }>;
            maxWidth: string;
            customContentField: string;
        };
    };
    copyingStates: Ref<Record<string, boolean>, Record<string, boolean>>;
    isProcessing: import('vue').ComputedRef<boolean>;
    latestAssistantMessageIndex: import('vue').ComputedRef<any>;
    copyTooltipContent: (messageIndex?: number) => "复制" | "复制成功";
    copyMessageToClipboard: (index: number) => Promise<void>;
    regenerateMessage: (index: number) => Promise<void>;
};