/**
 * Returns the zoned datetime string truncated to minute precision.
 *
 * - Removes seconds and milliseconds.
 * - Returns "" for invalid input.
 *
 * @param value ISO 8601 zoned datetime string
 * @returns Zoned datetime string at minute precision or "" for invalid
 *
 * @example chopZonedSeconds("2024-02-29T14:30:45.123-05:00[America/New_York]") // "2024-02-29T14:30-05:00[America/New_York]"
 * @example chopZonedSeconds("invalid") // ""
 */
export declare function chopZonedSeconds(value: string): string;