/**
 * True only when **`ENABLE_ACTIVIX_LOGXER=true`** and Activix package diagnostics
 * are not silenced by **`ACTIVIX_LOGS_LEVEL`** (or legacy **`ACTIVIX_LOG_LEVEL`**).
 *
 * With **`ENABLE_ACTIVIX_LOGXER`** unset or any value other than **`true`**,
 * Activix internal diagnostics run at error-only level by default.
 */
export declare function isActivixDiagnosticLoggingEnabled(): boolean;
export type ActivixResolvedLogger = {
    debug(msg: string, meta?: Record<string, unknown>): void;
    info(msg: string, meta?: Record<string, unknown>): void;
    warn(msg: string, meta?: Record<string, unknown>): void;
    error(msg: string, meta?: Record<string, unknown>): void;
};
/**
 * Internal logger for Activix when no `options.logger` is injected.
 * Error-only by default. Uses console diagnostics when **`ENABLE_ACTIVIX_LOGXER=true`**.
 */
export declare function resolveActivixInternalLogger(injected?: ActivixResolvedLogger): ActivixResolvedLogger;
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