diff --git a/alibabacloud_oss_v2/models/access_point.py b/alibabacloud_oss_v2/models/access_point.py
index bd9684f..26cefdc 100644
--- a/alibabacloud_oss_v2/models/access_point.py
+++ b/alibabacloud_oss_v2/models/access_point.py
@@ -442,21 +442,21 @@ class PutAccessPointPolicyRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
         'access_point_name': {'tag': 'input', 'position': 'header', 'rename': 'x-oss-access-point-name', 'type': 'str'},
         'body': {'tag': 'input', 'position': 'body', 'rename': 'nop'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         access_point_name: Optional[str] = None,
         body: Optional[BodyType] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             access_point_name (str, optional): The name of the access point.
             body (BodyType, optional): The configurations of the access point policy.
         """
diff --git a/alibabacloud_oss_v2/models/access_point_public_access_block.py b/alibabacloud_oss_v2/models/access_point_public_access_block.py
index 6525716..a96b872 100644
--- a/alibabacloud_oss_v2/models/access_point_public_access_block.py
+++ b/alibabacloud_oss_v2/models/access_point_public_access_block.py
@@ -71,19 +71,19 @@ class GetAccessPointPublicAccessBlockRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
         'access_point_name': {'tag': 'input', 'position': 'query', 'rename': 'x-oss-access-point-name', 'type': 'str'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         access_point_name: Optional[str] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             access_point_name (str, optional): The name of the access point.
         """
         super().__init__(**kwargs)
@@ -123,19 +123,19 @@ class DeleteAccessPointPublicAccessBlockRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
         'access_point_name': {'tag': 'input', 'position': 'query', 'rename': 'x-oss-access-point-name', 'type': 'str'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         access_point_name: Optional[str] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             access_point_name (str, optional): The name of the access point.
         """
         super().__init__(**kwargs)
diff --git a/alibabacloud_oss_v2/models/bucket_basic.py b/alibabacloud_oss_v2/models/bucket_basic.py
index 6b60c62..74444c1 100644
--- a/alibabacloud_oss_v2/models/bucket_basic.py
+++ b/alibabacloud_oss_v2/models/bucket_basic.py
@@ -84,7 +84,7 @@ class DeleteBucketRequest(serde.RequestModel):
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         **kwargs: Any
     ) -> None:
         """
diff --git a/alibabacloud_oss_v2/models/bucket_logging.py b/alibabacloud_oss_v2/models/bucket_logging.py
index 5499427..567438f 100644
--- a/alibabacloud_oss_v2/models/bucket_logging.py
+++ b/alibabacloud_oss_v2/models/bucket_logging.py
@@ -344,17 +344,17 @@ class DeleteUserDefinedLogFieldsConfigRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional):
+            bucket (str, required):
         """
         super().__init__(**kwargs)
         self.bucket = bucket
diff --git a/alibabacloud_oss_v2/models/bucket_policy.py b/alibabacloud_oss_v2/models/bucket_policy.py
index c56ef71..e7c0c5d 100644
--- a/alibabacloud_oss_v2/models/bucket_policy.py
+++ b/alibabacloud_oss_v2/models/bucket_policy.py
@@ -137,17 +137,17 @@ class GetBucketPolicyStatusRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
         """
         super().__init__(**kwargs)
         self.bucket = bucket
diff --git a/alibabacloud_oss_v2/models/bucket_public_access_block.py b/alibabacloud_oss_v2/models/bucket_public_access_block.py
index ab4237a..f55472c 100644
--- a/alibabacloud_oss_v2/models/bucket_public_access_block.py
+++ b/alibabacloud_oss_v2/models/bucket_public_access_block.py
@@ -37,17 +37,17 @@ class GetBucketPublicAccessBlockRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional):
+            bucket (str, required):
         """
         super().__init__(**kwargs)
         self.bucket = bucket
@@ -84,19 +84,19 @@ class PutBucketPublicAccessBlockRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
         'public_access_block_configuration': {'tag': 'input', 'position': 'body', 'rename': 'PublicAccessBlockConfiguration', 'type': 'xml'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         public_access_block_configuration: Optional[PublicAccessBlockConfiguration] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             public_access_block_configuration (PublicAccessBlockConfiguration, optional): Request body.
         """
         super().__init__(**kwargs)
@@ -115,17 +115,17 @@ class DeleteBucketPublicAccessBlockRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
         """
         super().__init__(**kwargs)
         self.bucket = bucket
diff --git a/alibabacloud_oss_v2/models/bucket_resource_group.py b/alibabacloud_oss_v2/models/bucket_resource_group.py
index 322ec91..cf399c2 100644
--- a/alibabacloud_oss_v2/models/bucket_resource_group.py
+++ b/alibabacloud_oss_v2/models/bucket_resource_group.py
@@ -84,19 +84,19 @@ class PutBucketResourceGroupRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
         'bucket_resource_group_configuration': {'tag': 'input', 'position': 'body', 'rename': 'BucketResourceGroupConfiguration', 'type': 'xml'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         bucket_resource_group_configuration: Optional[BucketResourceGroupConfiguration] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The bucket for which you want to modify the ID of the resource group.
+            bucket (str, required): The bucket for which you want to modify the ID of the resource group.
             bucket_resource_group_configuration (BucketResourceGroupConfiguration, optional): The request body schema.
         """
         super().__init__(**kwargs)
diff --git a/alibabacloud_oss_v2/models/bucket_style.py b/alibabacloud_oss_v2/models/bucket_style.py
index 12a43ed..d4a67e7 100644
--- a/alibabacloud_oss_v2/models/bucket_style.py
+++ b/alibabacloud_oss_v2/models/bucket_style.py
@@ -144,17 +144,17 @@ class ListStyleRequest(serde.RequestModel):
     """
 
     _attribute_map = { 
-        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'host', 'rename': 'bucket', 'type': 'str', 'required': True},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
         """
         super().__init__(**kwargs)
         self.bucket = bucket
diff --git a/alibabacloud_oss_v2/vectors/models/bucket_basic.py b/alibabacloud_oss_v2/vectors/models/bucket_basic.py
index e53ea36..6e0ccbd 100644
--- a/alibabacloud_oss_v2/vectors/models/bucket_basic.py
+++ b/alibabacloud_oss_v2/vectors/models/bucket_basic.py
@@ -136,7 +136,7 @@ class DeleteVectorBucketRequest(serde.RequestModel):
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         **kwargs: Any
     ) -> None:
         """
diff --git a/alibabacloud_oss_v2/vectors/models/index_basic.py b/alibabacloud_oss_v2/vectors/models/index_basic.py
index 150c9d5..8851765 100644
--- a/alibabacloud_oss_v2/vectors/models/index_basic.py
+++ b/alibabacloud_oss_v2/vectors/models/index_basic.py
@@ -21,7 +21,7 @@ class PutVectorIndexRequest(serde.RequestModel):
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         data_type: Optional[str] = None,
         dimension: Optional[int] = None,
         distance_metric: Optional[str] = None,
@@ -31,7 +31,7 @@ def __init__(
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             data_type (str, optional): The type of data for the vector index.
             dimension (int, optional): The dimension of the vector data.
             distance_metric (str, optional): The distance measurement function has the following optional values:
@@ -62,19 +62,19 @@ class GetVectorIndexRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', "required": True},
         'index_name': {'tag': 'input', 'position': 'body', 'rename': 'indexName', 'type': 'str'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         index_name: Optional[str] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             index_name (str, optional): The name of the index.
         """
         super().__init__(**kwargs)
@@ -112,7 +112,7 @@ class ListVectorIndexesRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', "required": True},
         'max_results': {'tag': 'input', 'position': 'body', 'rename': 'maxResults', 'type': 'int'},
         'next_token': {'tag': 'input', 'position': 'body', 'rename': 'nextToken', 'type': 'str'},
         'prefix': {'tag': 'input', 'position': 'body', 'rename': 'prefix', 'type': 'str'},
@@ -120,7 +120,7 @@ class ListVectorIndexesRequest(serde.RequestModel):
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         max_results: Optional[int] = None,
         next_token: Optional[str] = None,
         prefix: Optional[str] = None,
@@ -128,7 +128,7 @@ def __init__(
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             max_results (int, optional): The maximum number of indexes to return.
             next_token (str, optional): The token for the next page of indexes.
             prefix (str, optional): The prefix to filter indexes by name.
@@ -174,19 +174,19 @@ class DeleteVectorIndexRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', "required": True},
         'index_name': {'tag': 'input', 'position': 'body', 'rename': 'indexName', 'type': 'str'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         index_name: Optional[str] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             index_name (str, optional): The name of the index to delete.
         """
         super().__init__(**kwargs)
diff --git a/alibabacloud_oss_v2/vectors/models/vector_basic.py b/alibabacloud_oss_v2/vectors/models/vector_basic.py
index 0120b84..81ba96f 100644
--- a/alibabacloud_oss_v2/vectors/models/vector_basic.py
+++ b/alibabacloud_oss_v2/vectors/models/vector_basic.py
@@ -7,21 +7,21 @@ class PutVectorsRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', 'required': True},
         'index_name': {'tag': 'input', 'position': 'body', 'rename': 'indexName', 'type': 'str'},
         'vectors': {'tag': 'input', 'position': 'body', 'rename': 'vectors', 'type': '[dict]'},
     }
 
     def __init__(
             self,
-            bucket: Optional[str] = None,
+            bucket: str = None,
             index_name: Optional[str] = None,
             vectors: Optional[List[Dict]] = None,
             **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             index_name (str, optional): The name of the index.
             vectors (List[Dict], optional): The list of vectors to put.
         """
@@ -47,7 +47,7 @@ class GetVectorsRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', 'required': True},
         'index_name': {'tag': 'input', 'position': 'body', 'rename': 'indexName', 'type': 'str'},
         'keys': {'tag': 'input', 'position': 'body', 'rename': 'keys', 'type': '[str]'},
         'return_data': {'tag': 'input', 'position': 'body', 'rename': 'returnData', 'type': 'bool'},
@@ -56,7 +56,7 @@ class GetVectorsRequest(serde.RequestModel):
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         index_name: Optional[str] = None,
         keys: Optional[List[str]] = None,
         return_data: Optional[bool] = None,
@@ -65,7 +65,7 @@ def __init__(
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             index_name (str, optional): The name of the index.
             keys (List[str], optional): The list of vector keys to retrieve.
             return_data (bool, optional): Whether to return vector data.
@@ -108,7 +108,7 @@ class ListVectorsRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', 'required': True},
         'index_name': {'tag': 'input', 'position': 'body', 'rename': 'indexName', 'type': 'str'},
         'max_results': {'tag': 'input', 'position': 'body', 'rename': 'maxResults', 'type': 'int'},
         'next_token': {'tag': 'input', 'position': 'body', 'rename': 'nextToken', 'type': 'str'},
@@ -120,7 +120,7 @@ class ListVectorsRequest(serde.RequestModel):
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         index_name: Optional[str] = None,
         max_results: Optional[int] = None,
         next_token: Optional[str] = None,
@@ -132,7 +132,7 @@ def __init__(
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             index_name (str, optional): The name of the index.
             max_results (int, optional): The maximum number of vectors to return.
             next_token (str, optional): The token for the next page of vectors.
@@ -185,21 +185,21 @@ class DeleteVectorsRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', 'required': True},
         'index_name': {'tag': 'input', 'position': 'body', 'rename': 'indexName', 'type': 'str'},
         'keys': {'tag': 'input', 'position': 'body', 'rename': 'keys', 'type': '[str]'},
     }
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         index_name: Optional[str] = None,
         keys: Optional[List[str]] = None,
         **kwargs: Any
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             index_name (str, optional): The name of the index.
             keys (List[str], optional): The list of vector keys to delete.
         """
@@ -222,7 +222,7 @@ class QueryVectorsRequest(serde.RequestModel):
     """
 
     _attribute_map = {
-        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str'},
+        'bucket': {'tag': 'input', 'position': 'path', 'rename': 'bucket', 'type': 'str', 'required': True},
         'filter': {'tag': 'input', 'position': 'body', 'rename': 'filter', 'type': 'dict'},
         'index_name': {'tag': 'input', 'position': 'body', 'rename': 'indexName', 'type': 'str'},
         'query_vector': {'tag': 'input', 'position': 'body', 'rename': 'queryVector', 'type': 'dict'},
@@ -233,7 +233,7 @@ class QueryVectorsRequest(serde.RequestModel):
 
     def __init__(
         self,
-        bucket: Optional[str] = None,
+        bucket: str = None,
         filter: Optional[Dict] = None,
         index_name: Optional[str] = None,
         query_vector: Optional[Dict] = None,
@@ -244,7 +244,7 @@ def __init__(
     ) -> None:
         """
         Args:
-            bucket (str, optional): The name of the bucket.
+            bucket (str, required): The name of the bucket.
             filter (Dict, optional): The filter conditions for querying vectors.
             index_name (str, optional): The name of the index.
             query_vector (Dict, optional): The query vector data.