/**
 * Determine if a contact field should have the `et_pb_contact_field_last` CSS class.
 * This matches the server-side PHP logic that uses a global $half_width_counter.
 *
 * @since ??
 *
 * @param {string} fieldId          The ID of the current contact field module.
 * @param {number|null} loopedPosition The position within loop iterations (1-based), null for non-looped fields.
 * @param {string} parentId         The ID of the parent Contact Form module.
 * @param {string} fullwidth        The fullwidth setting value ('on' or 'off').
 *
 * @returns {boolean} Whether the field should have the `et_pb_contact_field_last` class.
 */
export declare const useIsLastContactField: (
  fieldId: string,
  loopedPosition: number | null,
  parentId: string,
  fullwidth: string,
) => boolean;