export interface LoggerOptions {
    filepath?: string;
    level?: LogLevel;
}
export default interface IDBSQLLogger {
    log(level: LogLevel, message: string): void;
    /**
     * Optional: the logger's current level. When implemented, the kernel
     * backend uses it to set the verbosity of the kernel-side (Rust) log bridge,
     * so kernel logs are filtered at the same level as the driver's own logs and
     * land in the same sink. Loggers that don't implement it leave the kernel
     * bridge at its `info` default.
     */
    getLevel?(): LogLevel;
    /**
     * Optional: subscribe to runtime level changes. When implemented, the
     * kernel backend subscribes so a runtime `setLevel(...)` retargets the
     * kernel-side log bridge too (not just the driver's own transports) — keeping
     * kernel verbosity in lock-step with the driver's. Returns an unsubscribe
     * function. Loggers that don't implement it still get the connect-time level;
     * only *runtime* retargeting of the kernel is unavailable.
     */
    onLevelChange?(listener: (level: LogLevel) => void): () => void;
}
export declare enum LogLevel {
    error = "error",
    warn = "warn",
    info = "info",
    debug = "debug"
}