import { Context, Session } from 'koishi';
import 'koishi-plugin-adapter-onebot';
export declare function getUserName(ctx: Context, session: Session, userId: string): Promise<string>;
export declare function getUserNameWithoutSession(ctx: Context, channelId: string, userId: string): Promise<string>;
export declare function createTextMsgNode(userId: string, nickname: string, content: string): {
    type: string;
    data: {
        user_id: string;
        nickname: string;
        content: string;
    };
};
export declare function createTextMsg(content: string): {
    type: string;
    data: {
        text: string;
    };
};
export declare function createFileMsg(content: string, type?: string): {
    type: string;
    data: {
        file: string;
    };
};