--- /dev/null
+from typing import Optional\r
+from ._base import Executor, Future\r
+import sys\r
+\r
+class ThreadPoolExecutor(Executor):\r
+ if sys.version_info >= (3, 6) or sys.version_info < (3,):\r
+ def __init__(self, max_workers: Optional[int] = ...,\r
+ thread_name_prefix: str = ...) -> None: ...\r
+ else:\r
+ def __init__(self, max_workers: Optional[int] = ...) -> None: ...\r