aanushh

/**
 * Zalora Segment Event to POND API Schema Transformer
 *
 * This function transforms a Segment event object into the specified POND API schema
 * based on the mapping tables provided in the document.
 *
 * @param {object} event The incoming Segment event object.
 * @returns {object|null} The transformed POND payload object, or null if the event type is unhandled.
 */
function transformEvent(event) {