Fix linting

Author: vbrodsky

libs/labelbox/src/labelbox/schema/user_group.py

@@ -1,6 +1,6 @@
 from collections import defaultdict
 from enum import Enum
-from typing import Iterator, List, Set
+from typing import Iterator, Set
 
 from lbox.exceptions import (
     MalformedQueryException,
@@ -317,9 +317,6 @@ def delete(self) -> bool:
             )
         return result["deleteUserGroup"]["success"]
 
-    def import_members(self, role: str, emails: List[str]):
-        pass
-
     def get_user_groups(self) -> Iterator["UserGroup"]:
         """
         Gets all user groups in Labelbox.

libs/labelbox/src/labelbox/schema/user_group_upload.py

@@ -40,6 +40,7 @@ class UploadReportLine:
     >>>     ]
     >>> }
     """
+
     email: str
     result: str
     error: Optional[str] = None
@@ -48,6 +49,7 @@ class UploadReportLine:
 @dataclass
 class UploadReport:
     """The report of the upload members mutation."""
+
     lines: List[UploadReportLine]