import { Context } from 'koishi';
/**
 * 星币操作工具类
 */
export declare class StarCoinHelper {
    /**
     * 获取用户星币数量
     */
    static getUserStarCoin(ctx: Context, userId: string, channelId: string): Promise<number>;
    /**
     * 设置用户星币数量
     */
    static setUserStarCoin(ctx: Context, userId: string, channelId: string, amount: number): Promise<boolean>;
    /**
     * 增加用户星币数量
     */
    static addUserStarCoin(ctx: Context, userId: string, channelId: string, amount: number): Promise<boolean>;
    /**
     * 减少用户星币数量
     */
    static removeUserStarCoin(ctx: Context, userId: string, channelId: string, amount: number): Promise<boolean>;
    /**
     * 检查用户星币是否足够
     */
    static hasEnoughStarCoin(ctx: Context, userId: string, channelId: string, amount: number): Promise<boolean>;
}