/**
 * Preference Trigger Utilities
 * Functions for detecting and interacting with the PreferenceCenterTrigger
 */
/**
 * Detects if a preference center trigger element exists in the DOM
 */
export declare function detectPreferenceTrigger(): boolean;
/**
 * Gets all preference trigger elements in the DOM
 */
export declare function getPreferenceTriggerElements(): NodeListOf<HTMLElement>;
/**
 * Sets the visibility of all preference trigger elements
 */
export declare function setPreferenceTriggerVisibility(visible: boolean): void;
/**
 * Gets the preference center opener function from the c15t store
 * Returns null if the store is not available or doesn't have the required method
 */
export declare function getPreferenceCenterOpener(namespace?: string): (() => void) | null;
/**
 * Opens the preference center if available
 * @returns true if the preference center was opened, false otherwise
 */
export declare function openPreferenceCenter(namespace?: string): boolean;