$customerId, ]); return $this->_post('invoiceitems', $parameters); } /** * Retrieves an existing invoice item. * * @param string $invoiceItemId * @return array */ public function find($invoiceItemId) { return $this->_get("invoiceitems/{$invoiceItemId}"); } /** * Updates an existing invoice item. * * @param string $invoiceItemId * @param array $parameters * @return array */ public function update($invoiceItemId, array $parameters = []) { return $this->_post("invoiceitems/{$invoiceItemId}", $parameters); } /** * Deletes an existing invoice item. * * @param string $invoiceItemId * @return array */ public function delete($invoiceItemId) { return $this->_delete("invoiceitems/{$invoiceItemId}"); } /** * Lists all invoice items. * * @param array $parameters * @return array */ public function all(array $parameters = []) { return $this->_get('invoiceitems', $parameters); } }