/**
 * MongoDB connection config
 */
export type MongoDBConnectionConfig = {
    /**
     * MongoDB client name. Always 'mongodb'
     */
    client: 'mongodb';
    /**
     * Connection string for MongoDB
     */
    connectionString?: string;
    /**
     * Connection details
     */
    connection?: {
        /**
         * Database host
         */
        host?: string;
        /**
         * Database port
         */
        port?: number;
        /**
         * Database username
         */
        user?: string;
        /**
         * Database password
         */
        password?: string;
        /**
         * Database name
         */
        database?: string;
        /**
         * Authentication source
         */
        authSource?: string;
        /**
         * Connection options
         */
        options?: Record<string, any>;
    };
    /**
     * Pool configuration
     */
    pool?: {
        /**
         * Min connections in pool
         */
        min?: number;
        /**
         * Max connections in pool
         */
        max?: number;
    };
    /**
     * Health check configuration
     */
    healthCheck?: boolean;
    /**
     * Debug mode
     */
    debug?: boolean;
};
/**
 * MongoDB config
 */
export type MongoDBConfig = {
    /**
     * Default connection to use
     */
    connection: string;
    /**
     * Map of connection configurations
     */
    connections: Record<string, MongoDBConnectionConfig>;
};
/**
 * Define MongoDB configuration
 */
export declare function defineConfig(config: MongoDBConfig): MongoDBConfig;