/**
 * Extracts the contents of the first pair of square brackets in a JSON-Path string — the query of the
 * outermost/first array-item scope, ignoring anything nested deeper in the path.
 * @param {string} path - The JSON-Path string.
 * @returns {string | undefined} The bracket contents, or undefined if the path has no brackets.
 * @example
 * ```ts
 * umbGetFirstJsonPathBracket("$.values[?(@.alias == 'x')].value.contentData[?(@.key == 'y')]");
 * // => "?(@.alias == 'x')"
 * ```
 */
export declare function umbGetFirstJsonPathBracket(path: string): string | undefined;