export declare class AiTaskIdentifierHelper {
    /**
     * Validates an AI task identifier.
     *
     * Rules:
     * - Cannot be empty or contain only whitespace
     * - Must contain only lowercase letters (a-z), digits (0-9), and hyphens (-)
     * - No consecutive hyphens (--)
     * - Cannot end with a hyphen
     * - Must be already normalized (no diacritical marks or non-ASCII characters)
     * - No uppercase letters
     *
     * @param identifier The identifier to validate
     * @returns Array of validation error messages (empty if valid)
     */
    static validateIdentifier(identifier: string): string[];
    /**
     * Generates a normalized identifier from an input string.
     *
     * Process:
     * - Normalizes the string to FormD (separates diacritics)
     * - Converts uppercase to lowercase
     * - Replaces invalid characters with hyphens
     * - Removes consecutive hyphens
     * - Trims trailing hyphens
     *
     * @param input The input string to generate an identifier from
     * @returns A normalized identifier, or "AiConnectionStringIdentifier" if input is empty
     */
    static generateIdentifier(input: string): string;
}
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