removing white spaces and unused libraries

Author: AGhafaryy

nodestream/pipeline/extractors/credential_utils.py

@@ -1,6 +1,6 @@
 from datetime import datetime
 from time import time
-from typing import Optional, Union
+from typing import Optional
 from uuid import uuid4
 
 import boto3
@@ -17,7 +17,6 @@ def __init__(
         session_ttl: int = 3000,
         **boto_session_args
     ) -> None:
-
         self.assume_role_arn = assume_role_arn
         self.assume_role_external_id = assume_role_external_id
         self.session_args = self._init_session_args(**boto_session_args)

tests/unit/pipeline/extractors/stores/aws/test_credential_utils.py

@@ -7,7 +7,6 @@
 from hamcrest import assert_that, equal_to, has_key, not_
 
 
-
 @pytest.fixture
 def client_with_role():
     from nodestream.pipeline.extractors.credential_utils import AwsClientFactory