/**
 * Injects ImportCSV styles into the document head
 * Uses a singleton pattern to prevent duplicate injection
 */
export declare function injectImportCSVStyles(): void;
/**
 * Removes ImportCSV styles from the DOM
 * Useful for cleanup in certain scenarios
 */
export declare function removeImportCSVStyles(): void;
/**
 * Checks if ImportCSV styles are currently injected
 */
export declare function areStylesInjected(): boolean;
