/**
 * Replaces all occurrences of a substring in the source string, escaping special characters and supporting optional case-insensitivity.
 *
 * @param source - The original string to perform replacements on.
 * @param findText - The substring or pattern to find (treated literally).
 * @param replaceWith - The replacement string (dollar signs are escaped automatically).
 * @param ignoreCase - Flag to ignore case (default `false`).
 * @returns A new string with all matches replaced.
 */
export declare const ReplaceAll: (source: string, findText: string, replaceWith: string, ignoreCase?: boolean) => string;