/**
 * Simple logger utility for the yak client SDK.
 * Debug/info logs are controlled by __YAK_LOGGING_ENABLED__.
 * Warnings and errors are always logged.
 *
 * Logging is controlled via:
 * 1. localStorage key "yakLogging" (persists across reloads)
 * 2. window.__YAK_LOGGING_ENABLED__ (runtime override)
 *
 * Use the helper functions to enable/disable:
 *   enableYakLogging()  - turns on logging, persists in localStorage
 *   disableYakLogging() - turns off logging, clears localStorage
 */
/**
 * Check if Yak logging is currently enabled.
 * Useful for checking state before creating iframes.
 */
export declare function isYakLoggingEnabled(): boolean;
/**
 * Enable Yak debug logging.
 * Persists in localStorage so it survives page reloads.
 * Call this from browser console: `enableYakLogging()`
 */
export declare function enableYakLogging(): void;
/**
 * Disable Yak debug logging.
 * Clears localStorage and window flag.
 * Call this from browser console: `disableYakLogging()`
 */
export declare function disableYakLogging(): void;
export declare const logger: {
    debug: (message: string, data?: unknown) => void;
    info: (message: string, data?: unknown) => void;
    warn: (message: string, data?: unknown) => void;
    error: (message: string, data?: unknown) => void;
};
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