[ISSUE #80] Update document for pull-related RPC (#81)

diff --git a/StatusCode.md b/StatusCode.md
index 76aaa3d..31eedcd 100644
--- a/StatusCode.md
+++ b/StatusCode.md
@@ -4,54 +4,55 @@
 
 > **Note**: The status code with asterisk(*) means it is first classification, '🔄' means the code is reserved.
 
-|             Status Code             | QueryRoute | Heartbeat | SendMessage | QueryAssignment | ReceiveMessage | AckMessage | ForwardMessageToDeadLetterQueue | EndTransaction | NotifyClientTermination | ChangeInvisibleDuration |
-| :---------------------------------: | :--------: | :-------: | :---------: | :-------------: | :------------: | :--------: | :-----------------------------: | :------------: | :---------------------: | :---------------------: |
-|                 OK*                 |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |            ✅            |
-|          MULTIPLE_RESULTS*          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ✅      |                ❌                |       ❌        |            ❌            |            ❌            |
-|            BAD_REQUEST*             |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|        ILLEGAL_ACCESS_POINT         |     ✅      |     ❌     |      ❌      |        ✅        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|            ILLEGAL_TOPIC            |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ❌            |            ✅            |
-|       ILLEGAL_CONSUMER_GROUP        |     ❌      |     ✅     |      ❌      |        ❌        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |            ✅            |
-|         ILLEGAL_MESSAGE_TAG         |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|         ILLEGAL_MESSAGE_KEY         |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|        ILLEGAL_MESSAGE_GROUP        |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|    ILLEGAL_MESSAGE_PROPERTY_KEY     |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|       INVALID_TRANSACTION_ID        |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ✅        |            ❌            |            ❌            |
-|         ILLEGAL_MESSAGE_ID          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|      ILLEGAL_FILTER_EXPRESSION      |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|      ILLEGAL_INVISIBLE_TIME         |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |            ✅            |
-|      ILLEGAL_DELIVERY_TIME          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|       ILLEGAL_POLLING_TIME          |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|       INVALID_RECEIPT_HANDLE        |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ✅      |                ✅                |       ❌        |            ❌            |            ✅            |
-| MESSAGE_PROPERTY_CONFLICT_WITH_TYPE |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|      UNRECOGNIZED_CLIENT_TYPE       |     ❌      |     ✅     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ✅            |            ❌            |
-|          MESSAGE_CORRUPTED          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|         CLIENT_ID_REQUIRED          |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |            ✅            |
-|            UNAUTHORIZED*            |     ❌      |     ✅     |      ✅      |        ❌        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |            ✅            |
-|          PAYMENT_REQUIRED*          |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|             FORBIDDEN*              |     ❌      |     ❌     |      ✅      |        ✅        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|             NOT_FOUND*              |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|          MESSAGE_NOT_FOUND          |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|           TOPIC_NOT_FOUND           |     ✅      |     ❌     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ❌        |            ❌            |            ✅            |
-|      CONSUMER_GROUP_NOT_FOUND       |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|         PAYLOAD_TOO_LARGE*          |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|       MESSAGE_BODY_TOO_LARGE        |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|        PRECONDITION_FAILED*         |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|         TOO_MANY_REQUESTS*          |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |            ✅            |
-|  REQUEST_HEADER_FIELDS_TOO_LARGE*   |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|    MESSAGE_PROPERTIES_TOO_LARGE     |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|           INTERNAL_ERROR*           |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|        INTERNAL_SERVER_ERROR        |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |            ✅            |
-|          HA_NOT_AVAILABLE           |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|          NOT_IMPLEMENTED*           |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|           PROXY_TIMEOUT*            |     ✅      |     ❌     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ❌            |            ✅            |
-|     MASTER_PERSISTENCE_TIMEOUT      |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|      SLAVE_PERSISTENCE_TIMEOUT      |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|            UNSUPPORTED*             |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|         VERSION_UNSUPPORTED         |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |            🔄            |
-|   VERIFY_FIFO_MESSAGE_UNSUPPORTED   |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-|     FAILED_TO_CONSUME_MESSAGE*      |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |            ❌            |
-
+|             Status Code             | QueryRoute | Heartbeat | SendMessage | QueryAssignment | ReceiveMessage | AckMessage | ForwardMessageToDeadLetterQueue | EndTransaction | NotifyClientTermination | ChangeInvisibleDuration | PullMessage | UpdateOffset | GetOffset | QueryOffset |
+| :---------------------------------: | :--------: | :-------: | :---------: | :-------------: | :------------: | :--------: | :-----------------------------: | :------------: | :---------------------: | :---------------------: | :---------: | :----------: | :-------: | :---------: |
+|                 OK*                 |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |           ✅      |      ✅      |      ✅      |   ✅      |     ✅      |
+|          MULTIPLE_RESULTS*          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ✅      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|            BAD_REQUEST*             |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|        ILLEGAL_ACCESS_POINT         |     ✅      |     ❌     |      ❌      |        ✅        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|            ILLEGAL_TOPIC            |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ❌            |           ✅      |      ❌      |      ❌      |   ❌      |     ❌      |
+|       ILLEGAL_CONSUMER_GROUP        |     ❌      |     ✅     |      ❌      |        ❌        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |           ✅      |      ❌      |      ❌      |   ❌      |     ❌      |
+|         ILLEGAL_MESSAGE_TAG         |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|         ILLEGAL_MESSAGE_KEY         |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|        ILLEGAL_MESSAGE_GROUP        |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|    ILLEGAL_MESSAGE_PROPERTY_KEY     |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|       INVALID_TRANSACTION_ID        |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ✅        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|         ILLEGAL_MESSAGE_ID          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|      ILLEGAL_FILTER_EXPRESSION      |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|      ILLEGAL_INVISIBLE_TIME         |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |           ✅      |      ❌      |      ❌      |   ❌      |     ❌      |
+|      ILLEGAL_DELIVERY_TIME          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|       ILLEGAL_POLLING_TIME          |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|       INVALID_RECEIPT_HANDLE        |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ✅      |                ✅                |       ❌        |            ❌            |           ✅      |      ❌      |      ❌      |   ❌      |     ❌      |
+| MESSAGE_PROPERTY_CONFLICT_WITH_TYPE |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|      UNRECOGNIZED_CLIENT_TYPE       |     ❌      |     ✅     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ✅            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|          MESSAGE_CORRUPTED          |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|         CLIENT_ID_REQUIRED          |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |           ✅      |      ✅      |      ✅      |   ✅      |     ✅      |
+|            UNAUTHORIZED*            |     ❌      |     ✅     |      ✅      |        ❌        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |           ✅      |      ✅      |      ✅      |   ✅      |     ✅      |
+|          PAYMENT_REQUIRED*          |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|             FORBIDDEN*              |     ❌      |     ❌     |      ✅      |        ✅        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|             NOT_FOUND*              |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|          MESSAGE_NOT_FOUND          |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|           TOPIC_NOT_FOUND           |     ✅      |     ❌     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ❌        |            ❌            |           ✅      |      ✅      |      ✅      |   ✅      |     ✅      |
+|      CONSUMER_GROUP_NOT_FOUND       |     ❌      |     ❌     |      ❌      |        ❌        |       ✅        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ✅      |      ❌      |   ❌      |     ❌      |
+|         PAYLOAD_TOO_LARGE*          |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|       MESSAGE_BODY_TOO_LARGE        |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|        PRECONDITION_FAILED*         |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|         TOO_MANY_REQUESTS*          |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |           ✅      |      ✅      |      ✅      |   ✅      |     ✅      |
+|  REQUEST_HEADER_FIELDS_TOO_LARGE*   |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|    MESSAGE_PROPERTIES_TOO_LARGE     |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|           INTERNAL_ERROR*           |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|        INTERNAL_SERVER_ERROR        |     ✅      |     ✅     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ✅            |           ✅      |      ✅      |      ✅      |   ✅      |     ✅      |
+|          HA_NOT_AVAILABLE           |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|          NOT_IMPLEMENTED*           |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|           PROXY_TIMEOUT*            |     ✅      |     ❌     |      ✅      |        ✅        |       ✅        |     ✅      |                ✅                |       ✅        |            ❌            |           ✅      |      ❌      |      ❌      |   ❌      |     ❌      |
+|     MASTER_PERSISTENCE_TIMEOUT      |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|      SLAVE_PERSISTENCE_TIMEOUT      |     ❌      |     ❌     |      ✅      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|            UNSUPPORTED*             |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|         VERSION_UNSUPPORTED         |     🔄      |     🔄     |      🔄      |        🔄        |       🔄        |     🔄      |                🔄                |       🔄        |            🔄            |           🔄      |      🔄      |      🔄      |   🔄      |     🔄      |
+|   VERIFY_FIFO_MESSAGE_UNSUPPORTED   |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|     FAILED_TO_CONSUME_MESSAGE*      |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ❌      |     ❌      |
+|           ILLEGAL_OFFSET            |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ✅      |      ❌      |   ❌      |     ❌      |
+|          OFFSET_NOT_FOUND           |     ❌      |     ❌     |      ❌      |        ❌        |       ❌        |     ❌      |                ❌                |       ❌        |            ❌            |           ❌      |      ❌      |      ❌      |   ✅      |     ❌      |
 ## Server-Client Telemetry RPC Status Code Mapping Table
 
 |                                 | ThreadStackTrace | VerifyMessageResult |