import type { PatternInput } from "../types/pattern-input.js";
/**
 * Checks if a pattern is a character set.
 *
 * @param pattern - The pattern to check.
 * @returns Whether the pattern is a character set.
 */
export declare function isCharacterSet(pattern: PatternInput): boolean;
//# sourceMappingURL=is-character-set.d.ts.map