/**
 * Minimal logger seam used by the SDK for non-event diagnostic output
 * (warnings, deprecation notices, telemetry fallbacks). All `console.*`
 * inside the SDK should route through `getLogger()` so ops teams can
 * redirect or silence messages in production.
 *
 * The default logger writes to `console` and respects
 * `FABRIC_HARNESS_LOG_LEVEL=debug|info|warn|error|silent` (default `warn`).
 *
 * @public
 */
export interface Logger {
    debug(message: string, meta?: Record<string, unknown>): void;
    info(message: string, meta?: Record<string, unknown>): void;
    warn(message: string, meta?: Record<string, unknown>): void;
    error(message: string, meta?: Record<string, unknown>): void;
}
export type LogLevel = 'debug' | 'info' | 'warn' | 'error' | 'silent';
/**
 * Replace the global SDK logger. Call once at startup before any `init()`.
 * Pass a custom Logger to redirect to your structured logging system.
 *
 * @public
 */
export declare function setLogger(logger: Logger): void;
/** Get the currently configured logger. @public */
export declare function getLogger(): Logger;
/**
 * Build a Console-backed logger with an explicit level. Useful for tests
 * that want to capture or silence SDK output without touching globals.
 *
 * @public
 */
export declare function createConsoleLogger(level?: LogLevel): Logger;
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