fix: make airflow opa auth manager compatible with python 3.9 (#1001)

Author: razvan

airflow/opa-auth-manager/opa_auth_manager/opa_fab_auth_manager.py

@@ -18,7 +18,8 @@
 from airflow.stats import Stats
 from airflow.utils.log.logging_mixin import LoggingMixin
 from cachetools import TTLCache, cachedmethod
-from typing import override
+from typing import Optional, Union
+from overrides import override
 import json
 import requests
 
@@ -132,8 +133,8 @@ def is_authorized_configuration(
         self,
         *,
         method: ResourceMethod,
-        details: ConfigurationDetails | None = None,
-        user: BaseUser | None = None,
+        details: Optional[ConfigurationDetails] = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to perform a given action on
@@ -178,8 +179,8 @@ def is_authorized_connection(
         self,
         *,
         method: ResourceMethod,
-        details: ConnectionDetails | None = None,
-        user: BaseUser | None = None,
+        details: Optional[ConnectionDetails] = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to perform a given action on a connection.
@@ -223,9 +224,9 @@ def is_authorized_dag(
         self,
         *,
         method: ResourceMethod,
-        access_entity: DagAccessEntity | None = None,
-        details: DagDetails | None = None,
-        user: BaseUser | None = None,
+        access_entity: Optional[DagAccessEntity] = None,
+        details: Optional[DagDetails] = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to perform a given action on a DAG.
@@ -277,8 +278,8 @@ def is_authorized_dataset(
         self,
         *,
         method: ResourceMethod,
-        details: DatasetDetails | None = None,
-        user: BaseUser | None = None,
+        details: Optional[DatasetDetails] = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to perform a given action on a dataset.
@@ -322,8 +323,8 @@ def is_authorized_pool(
         self,
         *,
         method: ResourceMethod,
-        details: PoolDetails | None = None,
-        user: BaseUser | None = None,
+        details: Optional[PoolDetails] = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to perform a given action on a pool.
@@ -367,8 +368,8 @@ def is_authorized_variable(
         self,
         *,
         method: ResourceMethod,
-        details: VariableDetails | None = None,
-        user: BaseUser | None = None,
+        details: Optional[VariableDetails] = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to perform a given action on a variable.
@@ -412,7 +413,7 @@ def is_authorized_view(
         self,
         *,
         access_view: AccessView,
-        user: BaseUser | None = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to access a read-only state of the installation.
@@ -446,9 +447,9 @@ def is_authorized_view(
     def is_authorized_custom_view(
         self,
         *,
-        method: ResourceMethod | str,
+        method: Union[ResourceMethod, str],
         resource_name: str,
-        user: BaseUser | None = None,
+        user: Optional[BaseUser] = None,
     ) -> bool:
         """
         Return whether the user is authorized to perform a given action on a custom view.