+CAResult_t CAAddBlockOptionImpl(coap_block_t *block, uint8_t blockType,
+ coap_list_t **options);
+
+/**
+ * Add the option list in pdu data.
+ * @param[out] pdu pdu object.
+ * @param[out] options option list.
+ * @return ::CASTATUS_OK or ERROR CODES (::CAResult_t error codes in cacommon.h).
+ */
+CAResult_t CAAddOptionToPDU(coap_pdu_t *pdu, coap_list_t **options);