Method exists

src/utils/database.js:94–100

(key)

    }

    async exists(key) {
        if (this.db.exists) {
            return this.db.exists(key);
        }
        const value = await this.db.get(key);
        return value !== null;
    }

    async increment(key, amount = 1) {
        if (this.useFallback) {