diff --git a/examples/cls/v20201016/cls_kv.proto b/examples/cls/v20201016/cls_kv.proto
index 04ae7bf0a..25ba9e3d3 100644
--- a/examples/cls/v20201016/cls_kv.proto
+++ b/examples/cls/v20201016/cls_kv.proto
@@ -16,7 +16,7 @@ message Log
 message LogTag
 {
     required string key       = 1;
-	required string value     = 2;
+    required string value     = 2;
 }
 
 message LogGroup
@@ -25,7 +25,7 @@ message LogGroup
     optional string contextFlow= 2;
     optional string filename = 3;
     optional string source = 4;
-	repeated LogTag logTags = 5;
+    repeated LogTag logTags = 5;
 }
 
 message LogGroupList
diff --git a/examples/cls/v20201016/createtopic.py b/examples/cls/v20201016/create_logset.py
similarity index 94%
rename from examples/cls/v20201016/createtopic.py
rename to examples/cls/v20201016/create_logset.py
index 6ec8860f5..e8426cda4 100644
--- a/examples/cls/v20201016/createtopic.py
+++ b/examples/cls/v20201016/create_logset.py
@@ -4,8 +4,8 @@
 from tencentcloud.common import credential
 from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
 # 导入对应产品模块的client models。
-
-from tencentcloud.cls.v20201016 import cls_client, models
+from tencentcloud.cls.v20201016 import cls_client
+from tencentcloud.cls.v20201016 import models
 from tencentcloud.common.profile.client_profile import ClientProfile
 from tencentcloud.common.profile.http_profile import HttpProfile
 
@@ -25,7 +25,6 @@
     # 实例化一个client选项，可选的，没有特殊需求可以跳过。
     clientProfile = ClientProfile()
     clientProfile.signMethod = "TC3-HMAC-SHA256"  # 指定签名算法(默认为HmacSHA256)
-    clientProfile.unsignedPayload = True
     clientProfile.httpProfile = httpProfile
 
     client = cls_client.ClsClient(cred, "ap-guangzhou", clientProfile)
diff --git a/examples/cls/v20201016/createlogset.py b/examples/cls/v20201016/create_topic.py
similarity index 94%
rename from examples/cls/v20201016/createlogset.py
rename to examples/cls/v20201016/create_topic.py
index 6ec8860f5..f628250ba 100644
--- a/examples/cls/v20201016/createlogset.py
+++ b/examples/cls/v20201016/create_topic.py
@@ -5,7 +5,8 @@
 from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
 # 导入对应产品模块的client models。
 
-from tencentcloud.cls.v20201016 import cls_client, models
+from tencentcloud.cls.v20201016 import cls_client
+from tencentcloud.cls.v20201016 import models
 from tencentcloud.common.profile.client_profile import ClientProfile
 from tencentcloud.common.profile.http_profile import HttpProfile
 
@@ -25,7 +26,6 @@
     # 实例化一个client选项，可选的，没有特殊需求可以跳过。
     clientProfile = ClientProfile()
     clientProfile.signMethod = "TC3-HMAC-SHA256"  # 指定签名算法(默认为HmacSHA256)
-    clientProfile.unsignedPayload = True
     clientProfile.httpProfile = httpProfile
 
     client = cls_client.ClsClient(cred, "ap-guangzhou", clientProfile)
diff --git a/examples/cls/v20201016/pb.py b/examples/cls/v20201016/pb.py
index a976de441..d5782975e 100644
--- a/examples/cls/v20201016/pb.py
+++ b/examples/cls/v20201016/pb.py
@@ -1,13 +1,10 @@
 # -*- coding:utf-8 -*-
 import sys
-
-import cls_kv_pb2
 import time
 import json
-import sys
 import random
 import string
-
+import cls_kv_pb2
 
 ##pb协议客户自定义
 def pb_gen(start_index, size):
diff --git a/examples/cls/v20201016/uploadlog.py b/examples/cls/v20201016/uploadlog.py
index bfdc6b11a..8fbddd669 100644
--- a/examples/cls/v20201016/uploadlog.py
+++ b/examples/cls/v20201016/uploadlog.py
@@ -27,7 +27,6 @@
     # 实例化一个client选项，可选的，没有特殊需求可以跳过。
     clientProfile = ClientProfile()
     clientProfile.signMethod = "TC3-HMAC-SHA256"  # 指定签名算法(默认为HmacSHA256)
-    clientProfile.unsignedPayload = True
     clientProfile.httpProfile = httpProfile
 
     client = common_client.CommonClient("cls", '2020-10-16', cred, "ap-beijing", clientProfile)